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Psychology- Neuron Quiz Flashcards

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1762395066Neurotransmitterschemical messages that cross the synaptic gap between neurons; bind to receptor sites on receiving neurons0
1762395067Serotoninmood/appetite (Paxil/Zoloft) SSRIs >mania 1
1762395068Acetylcholinemuscle movement, memory (voluntary & involuntary) 2
1762395069Dopaminepleasure, alertness, attention, motivation (heroine) Sczphrnia3
1762395070Endorphinspain relief, blocks pain receptors "high feeling" "runner's high" morphine like effect4
1762395071GABAinhibits neuron from firing "Gab-A-lot" get fired Huntingtons5
1762395072Sensory Neuroncarry incoming info from sensory receptors to brain and spine6
1762395073Motor Neuroncarry outgoing info from brain and spinal cord to muscles and glands7
1762395074Neurogenesisprocess by which neurons are generated from neural stem cells and progenitor cells8
1762395075Mirror Neuronsfires both when an animal acts and when an animal observes the same action performed by another9
1762395076Interneuronwithin the brain and spine that communicate internally and intervene between motor and sensory neurons10
1762395077Recovery periodRefractory period11
1762395078Neuron stimulationcauses a change in charge (all or none)12
1762395079Depolarizationaction potential moves + in - out and so on13
1762395080Action potentialmoves down the axon, neural impulse, brief electrical charge that travels down an axon14
1762395081Axonextension of neuron, ending in branching terminal fibers, messages pass to other neurons/muscles15
1762395082Glial cellsnon neural cells that maintain homeostasis: form myelin and provide support and protection for neurons in the brains and PNS16
1762395083reuptakeneurotransmitter's reabsorption by the sending neurons17
1762395084Antagonist moleculesblocks against medicated responses18
1762395085Agonist moleculescauses an action, activate the receptor to produce a biological response19
1762395086Hormonessecreted by endocrine system and transmitted through blood20
1762395087Pancreaseregulation of blood sugar (glucagon and insulin)21
1762395088Ovaries/testiesinduce sex hormones (estrogen/testosterone/progesterone)22
1762395089Adrenal glandssteroid & stress (cortisol); flight or flight (epinephrine/nonepinephrine aka adrenaline and non adrenaline)23
1762395090Pineal glandsmelotonin- initiates sleep24
1762395091Pituitary"master gland", regulates other glands to secrete their hormones25
1762395092ThyroidThyroxin (metabolism)26
1762395093Melatoninregulates metabolism27
1762395094excitatory signalsincrease firing action potential28
1762395095inhibitory signalsdecrease firing action potential29
1762395096Somatic Nervous Systemvoluntary30
1762395097Autonomic Nervous Systeminvoluntary31
1762395098Sympatheticarouses, expends energy (fight or flight, dilation, release increase)32
1762395099Parasympatheticconserves energy (rest and digest)33
1762395100Endocrine system"slow" chemical communication system, glands secrete hormones in bloodstream34

AP Psychology Neuron Quiz Flashcards

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949754498Gliasupport nervous system and keep them in place0
949754499Neuronscommunication1
949754500Somacell body2
949754501Dendritesreceive3
949754502Axontransmit away4
949754503Myelin Sheathfatty layer that surrounds the axon speeds up transmissions5
949754504Terminal Buttonend of axon secretes neurotransmitters6
949754505Neurotransmitterschemical messengers sent from one neuron to the next7
949754506Synapsepoint at which neurons connect8
949754507Synaptic Cleftspace between neurons9
949754508Presynaptic Neuronsynaptic vesicles full of neurotransmitters10
949754509PostSynaptic Neuronreceptor sites on dendrites and soma11
949754510ReuptakeNeurotransmitters are sucked back up by presynaptic neuron12
949754511Synaptic Connectionselimination and creation, synaptic pruning13
949754512Neurotransmittersspecific neurotransmitters work at specific synapses Lock and key mechanism14
949754513Agonistmimics neurotransmitters actions15
949754514Antagonistopposes action of a neurotransmitter16
949754515Refractory Periodtime needed for area to recharge17
949754516Resting PotentialWhen the neuron is not firing18
949754517Action Potentialwhen the neuron is firing19
949754518-70 millovoltsthe charge of resting potential20
949754519Central Nervous SystemBrain and spinal cord21
949754520Peripheral Nervous systemcomposed of the somatic and autonomic nervous systems22
949754521afferent nervessensory neurons23
949754522efferent nervesmotor neurons24
949754523Autonomic Nervous Systemsympathetic and parasympathetic25
949754524Sympatheticfight or flight26
949754525Parasympatheticcalms you down27

Psychology Chapter 1 & 2 Test Flashcards

Paton's Psychology Southeastern University

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1198959181The birth of psychology is often attributed to Wihelm Wundt because he pioneered the investigation of mental processes using: (Quiz)scientific methods0
1198959182Edward Titchener is to structuralism as William James is to: (Quiz)Functionalism1
1198959183Humanistic psychologists focused attention on the importance of people's... (Quiz)potential for healthy growth2
1198959184Contemporary psychology is best defined as the science of: (Quiz)behavior and mental processes3
1198959185Janna has low self-esteem because she is often teased for being overweight, appreciating the complexity of Janna's difficulties requires: (Quiz)A biopsychosocial approach4
1198959186Three attitudes of scientific inquiry are: (Quiz)curiosity, skepticism, and humility5
1198959187Professor Delano suggests that because people are especially attracted to those who are good looking, handsome men will be more successful than average looking men in getting a job. The professors prediction regarding employment success is an example of: (Quiz)hypothesis6
1198959188The biggest danger of relying on case study evidence is: (Quiz)May be unrepresentative of what is generally true7
1198959189Which research method would be appropriate for investigating the relationship between the religious beliefs of americans and their attitude toward abortion: (Quiz)Survey8
1198959190To assess reactions to a proposed tuition, Ariana sent a questionnaire to every 15th person in the registrars alphabetical listings of all currently enrolled students. Arianna is ensuring that her survey results are accurate by using: (Quiz)random sampling9
1198959191To determine whether the strengths of people's self esteem is related to their income levels researchers would most likely make use of: (Quiz)Correlational Research10
1198959192Which of the following methods is most helpful for clarifying cause and effect relationships? (Quiz)Experiment11
1198959193In a psychological experiment, the experimental factor that is manipulated by the investigator is called the ________ variable. (Quiz)independent12
1198959194An inert substance that may be administered instead of a drug to see if it produces any of the same effects as the drug is called a: (Quiz)placebo13
1198959195In a psychological experiment the factor that may be influenced by the manipulated experimental treatment is called the ________ variable (Quiz)Dependent14
1198959196The cells that serve as the basic building blocks of the bodies information system are called: (Quiz)neurons15
1198959197An axon is: (Quiz)the extension of a neuron that carries messages away from the cell body16
1198959198One function of the glial cells is to: (Quiz)provide nutrients to neurons17
1198959199A synapse is a(n) (Quiz)Junction between a sending neuron and a receiving neuron18
1198959200An undersupply of serotonin is most likely linked to (Quiz)depression19
1198959201The 2 major divisions of the nervous system are the central and the ________ nervous system (Quiz)Peripheral20
1198959202The hypothalamus influences the ________ to send messages to the ___________ (Quiz)Pituitary; endocrine glands21
1198959203The amygdala consists of a motion linked neutral clusters in the: (Quiz)Limbic System22
1198959204The ocipical lobes are to ___________ as the temporal lobes are to ____________. (Quiz)Seeing; Hearing23
1198959205The capacity of a brain area to recognize in response to damage is known as brain __________. (Quiz)plasticity24
1198959206Compared with identical twins, fraternal twins are __________, similar in neuroticism and ___________ similar in extroversion. (quiz)less; less25
1198959207The personalities of adopted children: (Quiz)Are very similar to the personalities of the other children in their adoptive family26
1198959208Environmental factors such as diet, drugs, or stress can alter gene expression by affecting: Quiz)Epigenetic Molecules27
1198959209Evolutionary psychology studies the evolution of behavior and the mind using principles of: (Quiz)natural selection28
1198959210According to the Evolutionary psychologists our predisposition to overconsume fatty junk foods illustrates that we are biologically prepared to behave in ways that promoted the: (Quiz)reproductive success of our ancestors.29
1198959211Wilhelm Wundt• Added key elements to make psychology a science o Carefully measured observations o Experiments30
1198959212Edward Tichener's Structuralism•Edward Titchener: Used data from Introspection, reporting on sensations and other elements of experience •Structuralism: Using these introspective reports to build a view of the mind's structure31
1198959213William James FunctionalismThe school of thought that psychological processes have a function: helping us survive as a species, adapt as individuals32
1198959214John WatsonBehavorist; Studied and experiment with observable behavior; Watson experimented with conditioned responses33
1198959215BF SkinnerBehavorist; Studied the way consequences shape behavior. He saw little value in introspection.34
1198959216Freudfounder of psychoanalysis; helped people with mental disorders35
1198959217Maslow and RogersHumanists—help people feel accepted and reach their full potential; studied people that thrived36
1198959218Text definition of psychologyThe science of behavior and mental processes37
1198959219Levels of analysis and a biopsychosocial approach•Biological Influences (diet, sleep, eating habits, exercise, weather) •Psychological Influences (homesick, fear of failure, stress, things you learn, challenging classes, anticipation, expectations) •Socio-Cultural Influences (being far away from home, making friends, having a different cultural background, comparing yourself, new independence)38
1198959220Overconfidence Error•We overestimate our performance, out rate of work, our degree of self-control. •When stating that we "know" something, out level of accuracy is usually wrong39
1198959221What are the three scientific attitudes?Curiosity, skepticism, humilty40
1198959222Curiosityalways asking new questions41
1198959223Skepticismnot accepting a "fact" as true without challenging it; seeing if "facts" can withstand attempts to disprove them42
1198959224Humilityrefers to seeking the truth rather than trying to be right; a scientist needs to be able to accept being wrong43
1198959225Case StudyExamining one individual in depth44
1198959226Naturalistic Observationjust watching (and taking notes), and not trying to change anything. This method can be used to study more than one individual, and to find truths that apply to a broader population45
1198959227Surveya method of gathering information about many people's thoughts or behaviors through self-report rather than observation Keys to getting useful information: Only question randomly sampled people46
1198959228Random Samplinga technique for making sure that every individual in a population has an equal chance of being in your sample. "Random" means that your selection of participants is driven only by chance, not any characteristic.47
1198959229Correlationan observation that two traits or attributes are related to each other48
1198959230Correlation Scientific Definitiona measure of how closely two factors vary together, or how well you can predict a change in one from observing a chance in the other49
1198959231Correlation does not prove _______causation50
1198959232Experimentationmanipulating one factor in a situation to determine its effect51
1198959233Control Groupa group that is the same in every way except the one variable that gets changed52
1198959234Independent variableThe variable we are able to manipulate independently of what the other variables are doing53
1198959235Dependent VariableThe variable we expect to experience a change, which depends on the manipulation we're doing54
1198959236Biological Psychologyexplores the associations between the body, mind, and behavior55
1198959237Neuronnerve cell; the basic building blocks of the nervous system56
1198959238Dendritesreceive messages from other cells57
1198959239Axonpasses messages away from the cell body to other neurons, muscles or glands58
1198959240Terminal branchesForm junctions with other cells59
1198959241Myelin SheathCovers the axon of some neurons and helps speed neural impulses60
1198959242Glial cellProvide nutrients to neurons61
1198959243Action potentialA neural impulse that travels down an axon like a wave62
1198959244SynapseA junction between the axon tip of the sending neuron and the dendrite or cell body of the receiving neuron63
1198959245Neurotransmitterschemicals used to send a signal across the synaptic gap64
1198959246AcetycholineEnables muscle action, learning, and memory65
1198959247DopamineInfluences movement, learning, attention and emotion66
1198959248Serotoninaffects mood, hunger, sleep, and arousal67
1198959249EndorphinsEndogenous morphine; linked to pain control and pleasure (runner's high)68
1198959250Central Nervous System (CNS)the brain and spinal cord, is the body's decision maker69
1198959251Peripheral Nervous System (PNS)gathers information from the body and sends CNS decisions out to the body70
1198959252Sensory Neuronscarry messages IN from the body's tissues and sensory receptors to the CNS for processing71
1198959253Motor Neuronscarry instructions OUT from the CNS out to the body's tissues72
1198959254Interneurons(in the brain and spinal cord) process information between the sensory input and motor output73
1198959255Autonomic nervous system to include the sympathetic and parasympathetic nervous systems.•Autonomic: Controls self-regulated action of internal organs and glands •The sympathetic NS arouses "fight-or-flight" response •The parasympathetic NS calms (rest and digest)74
1198959256Endocrine System to include adrenal glandsa set of glands that produce chemical messengers called hormones -inner part helps trigger the "flight-or-fight" response75
1198959257Thalamusthe "sensory switchboard" or "router": All sensory messages, except smell, are routed through the thalamus on the way to the cortex.76
1198959258Cerebellum"little brain"; helps coordinate voluntary movement such as playing a sport and Has many other functions, including enabling nonverbal learning and memory.77
1198959259Limbic system coordinates:emotions such as fear and aggression; basic drives such as hunger and sex f78
1198959260Amygdala "Almond shaped"consists of two lima bean-sized neural clusters; Helps process emotions, especially fear and aggression79
1198959261The hippocampus "seahorse"-Processes conscious, episodic memories -Works with the amygdala to form emotionally charged memories80
1198959262The hypothalamus-Regulates body temperature and ensures adequate food and water intake (homeostasis), and is involved in sex drive -Directs the endocrine system via messages to the pituitary gland81
1198959263Olds and Milner ExperimentThe rat ran across the electrified floor over 7000 times in 1 hour because it would trigger its hypothalamus which made the rat feel "good" and was like a rewards center.82
1198959264Cerebral CortexOrganized into 4 lobes in each of two hemispheres83
1198959265Frontal Cortexinvolved in speaking and muscle movements and in making plans and judgments84
1198959266Pariteal Lobesinclude sensory cortex85
1198959267Occipital Lobesinclude the visual areas; they receive visual information from the opposite visual field86
1198959268Temporal Lobesinclude the auditory processing areas87
1198959269Motor CortexOutput: Left hemisphere section controls the body's right side88
1198959270Sensory CortexInput:Left hemisphere section receives input from the body's right side89
1198959271Motor cortex and sensory cortex more info• The sensory strip deals with information from touch stimuli. • The occipital lobe deals with visual information • Auditory information is sent to the temporal lobe. • The fMRI shows increased activity in the visual cortex when a person looks at a photograph.90
1198959272Phineas GageIn a work accident, a metal rod shot up through Phineas Gage's skull, destroying his eye and part of his frontal lobes. Damage to his frontal lobes hurt his ability to inhibit emotions and impulses.91
1198959273Association AreasWhole brain association activity involves complex activities which require communication among association areas across the brain such as: memory, language, attention, meditation and spirituality, consciousness92
1198959274Brain PlasticityIf the brain is damaged, especially in the general association areas of the cortex... The brain does not repair damaged neurons, BUT it can restore some functions. It can form new connections, reorganize, and reassign brain areas to new functions.93
1198959275Corpus Callosuma band of axons connecting the hemispheres94
1198959276Split Braineach hemisphere perceives the half of the view in front of you that goes with the half of the body that is controlled by that hemisphere95
1198959277Behavior GeneticsStudy how heredity and environment contribute to human differences96
1198959278EpigeneticsThe study of how genes turn each other on and off in response to environmental conditions: The environment acts on the surface of genes to alter their activity97

PSYCHOLOGY NEURON TEST Flashcards

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2129404590SomaContains cell nucleus, DNA, controls protein manufacturing0
2129408331DendritesInformation collectors, receive inputs1
2129413661Axontube like structure, carries messages2
2129416498Terminal ButtonWhere the neuron releases chemicals to communicate w other neurons3
2129466425Myelin SheathWhite fatty casing on axon, produced by schwann cells4
2129469716Why are neurons important?basic fundamental building block5
2129477507Why do people suffer from multiple sclerosis?they have a lack of myelin sheath6
2129484039Neurogenesiscreation of neurons from stem cells7
2129487717Neuromigrationprocess by which neurons travel to certain places in brain during early development8
2129501872Aptosisuse it or lose it9
2129508818Action potentialthe electrical message being sent down the axon from the dendrites to the terminal buttons10
2129513811ThresholdEach neuron has a set number of receptor sites11
2129515374All or none responseif all receptor sites are not filled, the neuron will not fire an action potential12
2129519744Iona molecule with an electrical charge13
2129527256Polarized( Resting State)When a neuron has a negative charge inside and positive charge outside14
2129581473Semi permeable cell wallOnly certain molecules can pass through the cel membrane of a neuron15
2129592234Depolarized(Excited State)Cell membrane opens and sodium floods in ion exchange causes production of an action potential16
2129599078Refractory Period (Recharging)When potassium gets kicked out of the neuron and the neuron produces more protein17
2130989520Speed of stimuliDiameter of the axon presence of myelin18
2131003133Intensity of StimuliFrequency of action potentials Amount of neurons Stimulated19
2131004548Synapsethe space between 2 neurons where the chemical messages are exchanged20
2131007890Pre-Synaptic NeuronThe neuron sending the message21
2131009077Post-Synaptic NeuronThe neuron receiving the message22
2131012384Inhibitorycalms the brain and creates balance23
2131017628ExcitatoryExcites the brain24
2131071808AcetycholineSmall muscle movement memory25
2131074169DopaminePleasure Movement Sensory26
2131075421SerotoninMood27
2131076039GabaMajor Inhibitory Stops anxiety28
2131076530MelatoninInduces Sleep29
2131078534NorepinephrineFlight or Fight30
2131082371GlutamateMost common excitatory31
2131088387Diffusionthe neurotransmitter drifts out so it cannot activate receptor32
2131092544Enzymatic Degradationan enzyme changes the structure so it is not recognized by the receptor33
2131096382Glial CellsRemove the chemical from the synapse34
2131107302Reuptakegoes back into the pre-synaptic neuron to be recycled35
2131108670SchizophreniaA group of disorders characterized by confused disconnected thoughts, emotions and perceptions through hallucinations and delusions36
2131115278Positive Schizophreniaadded after onset delusions37
2131116436Negative Schizophrenialose after onset lose mobility38
2131117697Paranoid SchizophreniaPresence of auditory hallucinations or prominent delusional thoughts about persecution or conspiracy39
2131126504Disorganized SchizophreniaDisorganization of thought process40
2131129313Catatonic SchizophreniaDramatic Reduction in activity to the point where voluntary movement stops41
2131137053Undifferentiated SchizophreniaSymptoms but not sufficient to classify into a subtype42
2136786300Blood-Brain BarrierSemi-Permeable membrane of blood vessels; that is, it allows some materials to cross, but prevents others43
2136794074Functions of Blood Brain BarrierProtects brain from foreign substances Protects brain from other chemicals Maintains constant environment44
2136796330AgonistFake me out drug tricks BBB45
2136797367AntagonistBlocks receptor sites46
2136797898Reuptake PreventionBlocks reuptake of the neurotransmitter into the presynaptic neuron47
2136800535Blocking Enzymatic DegradationAntidepressant48
2136801875Parkinson's treatmentL-Dopa49

Psychology Consciousness Test Flashcards

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3294714340Consciousness___________, also defined as awareness or wakefulness, is the state of being aware of an external object or something within oneself.0
3294714341Conscious preconscious unconsciousFreud divided human consciousness into three levels of awareness: the _______, ________, and ________. Each of these levels corresponds and overlaps with Freud's ideas of the id, ego and superego1
3294714342ConsciousThe _________ level consists of all those things we are aware of, including things which we know about ourselves and our surroundings.2
3294714343PreconsciousThe _________ consists of those things which we could pay conscious attention to if we so desired, and where many memories are stored for easy retrieval.3
3294714344UnconsciousThe __________ consists of those things which are outside of conscious awareness, including many memories, thoughts, and urges of which we are not aware.4
3294714345Perception__________ is the process by which the mind selects, organizes, and interprets sensations.5
3294714346Subliminal messageA ____________ is a signal or message embedded in another object, designed to pass below the normal limits of perception.6
3294714347Hypnosis___________ is a trancelike state, artificially induced, in which a person has heightened suggestibility, and in which suppressed memories may be experienced.7
3294714348Arousal contentConsciousness is often described using two distinct dimensions: ________ and _______.8
3294714349Delta alpha theta betaThe four types of brain waves each correspond with one mental state: •Deep sleep - _______ •Twilight (drifting off to sleep) - ______ •light sleep - ______ •alert - ______9
329471435018 10-11 8.5 9.25 7 9Children need more sleep per day in order to develop and function properly: up to __ hours for newborn babies, with a declining rate as a child ages. Studies show that school age children need about ______ hours of sleep, adolescents need between ___ and _____, and adults generally between __ and __ hours.10
3294714351Circadian Rhythms___________ are physical, mental, and behavioral changes that respond to light and darkness and are important in determining human sleep patterns.11
3294714352non-REM sleep 10After the sleeper falls asleep, he or she enters into what is known as Stage 1 of _________. Stage 1 is the period when we "drift off". It lasts around __ minutes, and the sleeper is still easily awakened and might even deny having slept.12
3294714353non-REM sleep 45-55Stage 2 of _________ occupies _____% of total sleep in adults.13
3294714354non-REM sleep 30 45Stage 3 _________ is the beginning of deep sleep, occurring about __ to __ minutes after you first fall asleep.14
3294714355REM sleep 20-25 90_________ is the stage of sleep during which most brain activity and dreams occur, characterized by rapid eye movement. It accounts for _______% of total sleep time in most human adults. An adult reaches it approximately every __ minutes, with the latter half of sleep being more dominated by this stage.15
3294714356DyssomniaA _________ is any sleep disorder featuring an abnormality in the amount, quality, and timing of sleep.16
3294714357ParasomniaA _________ is a sleep disorder marked by irregular behavior or physiological occurrences happening during sleep or the transitional period between waking and sleeping.17
3294714358Insomnia________ is the failure to get enough sleep at night in order to feel rested the next day. This is a type of Dyssomnia.18
3294714359Sleep apnea________ is a disorder in which a person has trouble breathing while sleeping. This is a type of Dyssomnia.19
3294714360Narcolepsy________ is a condition characterized by suddenly falling asleep or feeling very sleepy during the day. This is a type of Dyssomnia.20
3294714361Sleep walking________ is where a person will get up and walk during the early hours of sleep. This is a type of Parasomnia.21
3294714362Sleep talking________ is a particularly common sleep disorder. It can be one word, long speeches, or even an entire conversation. This is a type of Parasomnia.22
3294714363Night terrors________ are characterized by a sudden arousal from deep sleep with a scream or cry, accompanied by some behavioral manifestations of intense fear. This is a type of Parasomnia.23
3294714364Freud_______'s theory centered around the notion of repressed longing — the idea that dreaming allows us to sort through unresolved, repressed ________.24
3294714365Threat-simulation__________ theory suggests that dreaming should be seen as an ancient biological defense mechanism.25
3294714366Expectation fulfillment__________ theory posits that dreaming serves to discharge emotional arousals (however minor) that haven't been expressed during the day.26
3294714367Activation-synthesisThe __________ theory which states that dreams don't actually mean anything.27
3294714368Continual-activationThe __________ theory of dreaming proposes that dreaming is a result of brain activation and synthesis.28
3294714369Depressants__________ cause the body to relax by increasing the neurotransmitter GABA, which decreases neuronal excitability.29
3294714370Alcohol_______: Though initially a stimulant, alcohol ultimately depresses the brain, resulting in relaxation and impaired judgment. This is a type of Depressant.30
3294714371Barbiturates_________: They are effective as anxiolytics, hypnotics, and anticonvulsants, and also have an analgesic (painkiller) effect. This is a type of Depressant.31
3294714372Benzodiazepines__________: They enhance the effect of the neurotransmitter gamma-aminobutyric acid (GABA) at the GABAA receptor, resulting in sedative, hypnotic (sleep-inducing), anxiolytic (anti-anxiety), anticonvulsant, and muscle relaxant properties. This is a type of Depressant.32
3294714373Cannabinoids__________: Although Cannabis or Marijuana is often considered either in its own unique category or as a mild psychedelic, the drug — notably the chemical compound Cannabidiol it contains — nevertheless has many depressant effects such as muscle relaxation, sedation, decreased alertness, and tiredness. This is a type of Depressant.33
3294714374Opioids________: They are any psychoactive chemical that resembles morphine or other opiates in its pharmacological effects. This is a type of Depressant.34
3294714375Stimulants_________ induce temporary improvements in mental and/or physical functions, and are commonly used as prescription or recreational drugs.35
3294714376Amphetamines____________ are a group of stimulants that increase the levels of norepinephrine and dopamine in the brain through reuptake inhibition — meaning they block these neurotransmitters from being reabsorbed back into the neural networks. This is a type of Stimulant.36
3294714377MDMA_______, known by its common street name "Ecstasy," had a medical application as a treatment for depression and a psychotherapy aid until 1985, when it became a controlled substance. This is a type of Stimulant & Hallucinogen.37
3294714378Cocaine________ is made from the leaves of the coca shrub, which grows in the mountain regions of South America. Most of its use is recreational and its abuse potential is high, and so its sale and possession are strictly controlled in most jurisdictions. This is a type of Stimulant.38
3294714379Caffeine________ is a drug that is found naturally in coffee, tea, soft drinks, and cocoa. It stimulates the body, increases heart rate and blood pressure, and facilitates alertness and concentration. This is a type of Stimulant.39
3294714380NicotineIn very low concentrations, ________ also acts as a stimulant, and it is one of the main factors responsible for the dependence-forming properties of tobacco smoking. This is a type of Stimulant.40
3294714381Narcotics_________ are any class of substances or drugs, that reduces pain, induces sleep and may alter mood or behavior.41
3294714382Hallucinogens_________ are drugs that alter sensory input to the brain. This creates an altered sense of reality, as well as a change in emotions and thought patterns.42
3294714383Psychedelics___________ are distinguished from the other two subclasses by their lack of addictive qualities, and the remarkable experiences one may experience under their influence. This is a subclass of Hallucinogens.43
3294714384Dissociatives____________ are a subclass of hallucinogens that work by blocking or altering sensory perception (including senses that are perceived by the unconscious mind), creating a feeling of disconnection and depersonalization from one's body and reality in general.44
3294714385Deliriants__________ are very similar to dissociatives, and are considered to be true hallucinogens because the visuals they produce are hard or impossible to tell apart from reality. This is a subclass of Hallucinogens.45
3294714386PCP___ (or Angel Dust) prevents the actions normally caused when a neurotransmitter called glutamate is able to attach to its receptor in the brain. This is a type of Hallucinogen.46
3294714387LSD____ blocks serotonin from the brain which regulates mood, perception, muscle contraction, and other cognitive functions. It blocks serotonin because it is, structurally, similar to serotonin. This is a type of Hallucinogen.47
3298384682Chronobiology_________ is the study of the effects of time on biological systems, especially the effects of periodicity.48
3298391516Circadian_________ is of, or relating to, or showing rhythmic behavior with a period of 24 hours; especially of a biological process.49
3298405541Dissociation__________ is a state of consciousness in which certain thoughts or mental processes are compartmentalized; this is often an unconscious defense mechanism hat seeks to avoid emotional stress to the conscious mind.50
3298416428Entrainment__________ is the alignment of an organism's circadian rhythm to that of an external rhythm in its environment.51
3298427389Latent_______ means existing or present but concealed or inactive.52
3298429806Manifest_________ means obvious to understanding; apparent to the mind; easily apprehensible; plain; not obscure or hidden.53
3298435276Mantra__________ is a sound, word, or phrase repeated to assist concentration during meditation, originally in Hinduism.54
3298441068Meditation_________ is a practice in which an individual trains the mind and/or induces a mode of consciousness to realize some benefit, although it can be argued that it is a goal in and of itself a devotional exercise of, or leading to contemplation.55
3298453734Polysomnography___________ is a multiparameter technique which documents multiple different psychological procedures during the night, for the purpose of diagnosing sleep-related disorders.56
3298463661Subliminal perception__________ is perception that is below he threshold of consciousness.57
3298466219TranceA _________ is a state of concentration, awareness and/or focus that filters information and experience; e.g. meditation, possession, etc.58

Experience Psychology Chapter 3 Flashcards

experience psychology chapter 3

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314831426sensationthe process of receiving stimulus energies from the external environment and transforming those energies into neural energy0
314831427perceptionthe process of organizing and interpreting sensory information so that it makes sense1
314831428bottom-up processingthe operation in sensation and perception in which sensory receptors register information about the external environment and sent it up to the brain for interpretation--automatic2
314831429top-down processingthe operation in sensation and perception, launched by cognitive processing at the brain's higher levels that allows the organism to sense what is happening and to apply that framework to inforamtion from the world3
314831430sensory receptorsspecialized cells that detect stimulus information and transmit it to sensory (afferent) nerves and the brain4
314831431absolute thresholdthe minimum amount of stimulus energy that a person can detect5
314831432noiseirrelevant and competing stimuli--not only sounds but also any distracting stimuli for our senses6
314831433subliminal perceptionthe detection of information below the level of conscious awareness7
314831434difference thresholdthe degree of difference that must exist between two stimuli before the difference is detected8
314831435Weber's lawthe principle that two stimuli must differ by a constant minimum percentage (rather than a constant amount) to be perceived as different9
314831436selective attentionthe act of focusing on a specific aspect of experience while ignoring others10
314831437perceptual seta predisposition or readiness to perceive something in a particular way11
314831438sensory adaptationa change in teh responsiveness of the sensory system based on the average level of surrounding stimualtion12
314831439lighta form of electromagnetic energy that can be described in terms of wavelengths13
314831440huethe wavelenght of light that is reflected from a stimulus14
314831441corneathe structure that contacts the environment and focuses light15
314831442iristhe structure that gives the eye color, controls the amount of light, and responds to arousal16
314831443lensthe structure that changes to allow shaper focus17
314831444retinathe structure where the photorecpetors, which change light to neural activity, are located18
314831445foveathe structure with the highest density of photoreceptors that we place an image on when we focus19
314831446rodsthe photoreceptors that process light and dark, movement, and night vision20
314831447conesthe photoreceptors that break light into perceptual color21
314831448optic nervethe structue at teh back of the eye, made up of axons of the ganglion cells, that carries visual information to the brain for further processing22
314831449blind-spotthe place on the retina that contains neither rods nor cones; is the place on the retina where the optic nerve leaves the eye on its way to the brain23
314831450feature detectorsneurons in the brain's visual system that respond to particular features of a stimulus24
314831451paralllel processingthe simultaneous distribution of information across different neural pathways25
314831452bindingin the sense of vision, the bringing together and integration of what is processed by different neural pathways or cells26
314831453trichromatic theorytheory stating that color perception is produced by three types of cone receptors in the retina that are particularily sensitive to different, but overlapping, ranges of wavelengths27
314831454opponent-process theorytheory stating that cells in the visual system respond to complementary pairs of red-green and blue-yellow colors; a given cell might be excited by red and inhibited by green, whereas another cell might be excited by yellow and inhibited by blue28
314831455figure-ground relationshipthe principle by which we organize the perceptual field into stimuli that stand out (figure) and those that are left over (ground)29
314831456gestalt psychologya school of thought interested in how people naturally organize their perceptions according to certain patterns30
314831457depth perceptionthe ability to perceive objects three-dimensionally31
314831458binocular cuesdepth cues that depend on the combination of the images in teh left and right eyes and on the way the two eyes work together32
314831459disparitydifference between the images in the two eyes is the binocular cue the brain uses to determine the depth, or distance of an object33
314831460convergencea binocular cue to depth and distance in which teh muscle movements in our two eyes provide inforamtion about how deep and/or far away something is34
314831461monocular cuespowerful depth cues available from the image in one eye, either the right or left35
314831462familiar sizethe cue is based on what we have learned from experience about the standard sizes of objects.36
314831463height in field of viewall other things being equal, objects positioned higher in a picture are seen as farther away37
314831464linear perspective and relative sizeobjects that are farther away take up less space on teh retina38
314831465overlapwe percieve an object that partially conceals or overlaps another object as closer39
314831466shadingthe cue involves changes in perception due to the position of the light and the position of the viewer40
314831467texture gradienttexture becomes denser and finer the farther away it is from the viewer41
314831468apparent movementthe perception that a stationary object is moving42
314831469perceptual constancythe recognition that objects are constant and unchanging even though sensory input about them is changing43
314831470pitchthe perceptual interpretation of the frequency of a sound44
314831471loudnessthe perception of the sound wave's amplitude45
314831472outer earthe outermost part of the ear; consisting of the pinna and the external auditory canal46
314831473middle earthe part of the ear that channels sounds through the eardrum, hammer, anvil, and stirrup to the inner ear47
314831474inner earthe part of the ear that includes the oval window, cochlea, and basilar membrane and whose funstion is to cnvert sound waves into neural impulses and send them to the brain48
314831475place theorytheory on how the inner ear registers the frequency of sound; stating that each frequency produces vibrations at a particular spot on the basilar membrane49
314831476frequency theorytheory on how the inner ear registers the frequency of sound, stating that the perception of a sound's frequency depends on how often the auditory nerve fires50
314831477volley principlemodification of frequency theory stating that a cluster of nerve cells can fire neural impulses in rpaid successions. producing a volley of impulses51
314831478auditory nervethe nerve structure that receives information about sound from the hair cells of the inner ear and carries these neural impulses to the brain's auditory areas52

AP Psychology Chapter 3: Consciousness and the Two-Track Mind Flashcards

Psychology Ninth Edition by David Myers Chapter 3: Consciousness and the Two-Track Mind Vocabulary

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761348743consciousnessour awareness of ourselves and our environment.0
761348744cognitive neurosciencethe interdisciplinary study of the brain activity linked with cognition (including perception, thinking, memory, and language).1
761348745dual processingthe principle that information is often simultaneously processed on separate conscious and unconscious tacks.2
761348746selective attentionthe focusing of conscious awareness on a particular stimulus.3
761348747inattentional blindnessfailing to see visible objects when our attention is directed elsewhere.4
761348748change blindnessfailing to notice changes in the environment.5
761348749circadian rhythmthe biological clock; regular bodily rhythms (for example, of temperature and wakefulness) that occur on a 24-hour cycle.6
761348750REM Sleeprapid eye movement sleep, a recurring sleep stage during which vivid dreams commonly occur. Also known as paradoxical sleep, because the muscles are relaxed (except for minor twitches) but other body systems are active.7
761348751alpha wavesthe relatively slow brain waves of a relaxed, awake state.8
761348752sleepperiodic, natural, reversible loss of consciousness - as distinct from unconsciousness resulting from a coma, general anesthesia, or hibernation.9
761348753hallucinationsfalse sensory experiences, such as seeing something in the absence of an external visual stimulus.10
761348754delta wavesthe large, slow brain waves associated with deep sleep.11
761348755insomniarecurring problems in falling or staying asleep.12
761348756narcolepsya sleep disorder characterized by uncontrollable sleep attacks. The sufferer may lapse directly into REM sleep, often at inopportune times.13
761348757sleep apneaa sleep disorder characterized by temporary cessations of breathing during sleep and repeated momentary awakenings14
761348758night terrorsa sleep disorder characterized by high arousal and an appearance of being terrified; unlike nightmares, night terrors occur during stage 4 sleep, withing two or three hours of falling asleep, and are seldom remembered.15
761348759dreama sequence of images, emotions, and thoughts passing through a sleeping person's mind. Dreams are notable for their hallucinatory imagery, discontinuities, and incongruities, and for the dreamer's delusional acceptance of the content and later difficulties remembering it.16
761348760manifest contentaccording to Freud, the remembered story line of a dream (as distinct from its latent, or hidden, content).17
761348761latent contentaccording to Freud, the underlying meaning of a dream (as distinct from its manifest content).18
761348762REM reboundthe tendency for REM sleep to increase following REM sleep deprivation (created by repeated awakenings during REM sleep).19
761348763hypnosisa social interaction in which one person (the hypnotist) suggests to another (the subject) that certain perceptions, feelings, thoughts, or behaviors will spontaneously occur.20
761348764posthypnotic suggestiona suggestion, made during a hypnosis session, to be carried out after the subject is no longer hypnotized; used by some clinicians to help control undesired symptoms and behaviors.21
761348765dissociationa split in consciousness, which allows some thoughts and behaviors to occur simultaneously with others.22
761348766psychoactive druga chemical substance that alters perceptions and moods.23
761348767tolerancethe diminishing effect with regular use of the same dose of a drug, requiring the use to take larger and large doses before experiencing the drug's effect.24
761348768withdrawalthe discomfort and distress that follow discontinuing the use of an addictive drug.25
761348769physical dependancea physiological need for a drug, marked by unpleasant withdrawal symptoms when the drug is discontinued.26
761348770psychological dependancea psychological need to use a drug, such as to relieve negative emotions.27
761348771addictioncompulsive drug craving and use, despite adverse consequences.28
761348772depressantsdrugs (such as alcohol, barbiturates, and opiates) that reduce neural activity and slow body functions.29
761348773barbituratesdrugs that depress the activity of the central nervous system, reducing anxiety but impairing memory and judgment.30
761348774opiatesopium and its derivatives, such as morphine and heroin; they depress neural activity, temporarily lessening pain and anxiety.31
761348775stimulantsdrugs (such as caffeine, nicotine, and more powerful amphetamines, cocaine, and Ecstasy) that excite neural activity and speed up body functions.32
761348776amphetaminesdrugs that stimulate neural activity, causing speeded-up body functions and associated energy and mood changes.33
761380848methamphetaminesa powerfully addictive drug that stimulates the central nervous system, with speeded-up body functions and associated energy and mood changes; over time, appears to reduce baseline dopamine levels.34
761380849Ecstasy (MDMA)a synthetic stimulant and mild hallucinogen. Produces euphoria and social intimacy, but with short-term health risks and longer-term harm to serotonin-producing neurons and to mood and cognition.35
761380850hallucinationspsychedelic (mind-manifesting") drugs, such as LSD, that distort perceptions and evoke sensory images in the absence of sensory input.36
761380851LSDa powerful hallucinogenic drug; also known as acid (lysergic acid diethylamide).37
761380852THCthe major active ingredient in marijuana; triggers a variety of effects, including mild hallucinations.38
761380853near-death experiencean altered state of consciousness reported after a close brush with death (such as through cardiac arrest); often similar to drug-induced hallucinations.39

Meyers Psychology Chapter 2 - Neuroscience & Behavior Flashcards

Terms : Hide Images
2913741323NeuronA nerve cell; basic building block of the nervous system0
2913743470DendriteThe bushy branches of a neuron that receives messages and send them toward the cell body (Listener)1
2913749967AxonThe extension of a neuron, ending in branching terminal fibers, through which messages are passed to other neurons (Speaker)2
2913765488Myelin SheathA layer of fatty tissue segmentally encasing the fibers of many neurons; enables greater transmission speed of neural impulses3
2913773525Action PotentialA neural impulse; a brief electrical charge that travels down the axon. Generated by the movement of positively charged atoms in and out of channels in the axon's membrane4
2913953228SynapseThe tiny gap between the axon and the dendrite5
2913957220NeurotransmittersChemical messengers that traverse the synaptic gap between neurons and bind to receptor sites on the receiving neuron6
2914041366Acetlycholine (ACh)A neurotransmitter that enables muscle action, learning, and memory. Malfunction causes Alzheimer's Disease7
2914108111DopamineA neurotransmitter that influences movement, learning, attention, & emotion. Excess linked to Schizophrenia and lack of causes tremors & Parkinson's disease8
2914114550SerotoninA neurotransmitter that effects MOOD, hunger, sleep, and arousal. Undersupply causes depression9
2914262747EndorphinsA neurotransmitter linked to pain control and pleasure. Our natural opiate (morphine/heroin)10
2914347872Central Nervous SystemBrain & Spinal Cord11
2914350108Peripheral Nervous SystemThe sensory and motor neurons that sonnects the CNS with the rest of the body12
2914361566Somatic Nervous SystemPart of the peripheral nervous system that controls voluntary movements of the skeletal muscles13
2914371065Parasympathetic Nervous SystemPart of the Autonomic Nervous System that arouses the body in stressful situations14
2917185291Endocrine SystemThe set of glands that secrete hormones into the bloodstream to send chemical messages15
2917189676HormonesChemical messengers (part of endocrine system) that are produced in one tissue and affect another16
2917197379Adrenal GlandsPair of endocrine glands just above the kidneys that secrete epinephrine and norepinephrine to arouse the body during stress17
2917204963Pituitary GlandEndocrines most influential gland, controlled by the hypothalamus, and regulates growth18
2917217263Electroencephalogram (EEG)Recording of brain waves (electrical activity). Measured with electrodes on the scalp19
2917225511Positron Emission Tomography (PET) ScanDisplay of brain activity that detects where a radioactive form of glucose goes while the brain performs a given task20
2917236632Magnetic Resonance Imaging (MRI)Use of magnetic fields and radio waves to produce an image of the structures within the brain21
2917250718MedullaThe base of the brain stem; controls heartbeat and breathing22
2917257443Reticular FormationA nerve network in the brainstem that plays an important role in controlling arousal (consciousness)23
2917265378Cerebellum"Little brain" that coordinates movement and balance24
2917988872AmygdalaTwo neural clusters in the limbic system that are linked to emotion25
2917990000HypothalamusNeural structure that controls maintenance activities like eating, drinking, and body temp26
2917992147Cerebral CortexThe brain's information processing center made of interconnected neural cells that covers both hemispheres of the brain27
2917993820Frontal LobesPart of cerebral cortex in the front of the brain involving planning and judgement (contains the motor cortex)28
2917995266Parietal LobesPart of the cerebral cortex on top of the head that controls the sense (includes the sensory cortex)29
2917995755Occipital LobesPart of the cerebral cortex in the back of the head and controls vision30
2917996317Temporal LobesPart of the cerebral cortex lying above the ears that includes auditory areas31
2917998727Broca's AreaPart of the brain in the frontal lobe that controls language expression (speech)32
2917999660Wernicke's AreaPart of the brain in the left temporal lobe that controls languages reception (comprehension and expression)33
2918002125PlasticityThe brain's capacity for modification/Ability to reorganize neural pathways34
2918003280Corpus CallosumLarge band of nerves in the middle of the brain that connects the two hemispheres together and carries messages between them35

Psychiatric Nursing Anxiety Meds Flashcards

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1088036953SSRIsAntidepressant. Selective serotonin reuptake inhibitors (SSRIs) are first line therapy for acute stress disorders and PTSD. Preferable to tricyclic antidepressants (TCAs) because they have more rapid onset of action and fewer side effects. Some of SSRIs have more of an activating effect than others and may increase anxiety.0
1088036954Citalopram (Celexa)SSRI. Used for panic disorder, social anxiety disorder, obsessive-compulsive disorder, generalized anxiety disorder, PTSD.1
1088036955Escitalopram (Lexapro)SSRI. Generalized anxiety disorder, panic disorder, social anxiety disorder, obsessive-compulsive disorder, PTSD.2
1088036956Fluoxetine (Prozac)SSRI. Panic disorder, obsessive compulsive disorder, social anxiety disorder, generalized anxiety disorder, PTSD.3
1088036957Fluvoxamine (Luvox)SSRI. Obsessive compulsive disorder, social anxiety disorder, panic disorder, generalized anxiety disorder, PTSD4
1088036958Paroxetine (Paxil)SSRI. Panic disorder, social anxiety disorder, obsessive-compulsive disorder, generalized anxiety disorder, PTSD. More calming effect than other SSRIs.5
1088036959Sertraline (Zoloft)SSRI. Panic disorder, social anxiety disorder, obsessive compulsive disorder, PTSD, generalized anxiety disorder. More calming effect than other SSRIs.6
1088036961SNRIsSerotonin-norepinephrine reuptake inhibitors. Useful for treatment of some anxiety disorders. Common: cymbalta, effexor.7
1088036963Duloxetine (Cymbalta)SNRI. Panic disorder, generalized anxiety disorder, obsessive-compulsive disorder, PTSD8
1088036966Venlafaxine (Effexor)SNRI. Generalized anxiety disorder, social anxiety disorder, panic disorder, obsessive compulsive disorder, PTSD9
1088036969Tricyclic Antidepressants (TCAs)SSRIs preferable over TCAs. TCAs have more problematic side effects. Initial dose should always be low and increased gradually.10
1088036970TCA Side EffectsCommon adverse reactions: anticholinergic actions (dry mouth, blurred vision, tachycardia, constipation, urinary retention, esophageal reflux). Weight gain also common. Can produce orthostatic hypotension, tachycardia, dizziness, increased falls. Administering at night is beneficial Potential toxic effects: cardiovascular- dysrhythmias, tachycardia, MI, heart block Contraindications: Not used with MAOI11
1088036972Amitriptyline (Elavil)TCA. Panic disorder, GAD, PTSD12
1088036974Clomipramine (Anafranil)TCA. OCD, panic disorde, GAD, PTSD13
1088036977Desipramine (Norpramin)TCA. Panic disorder, GAD, PTSD14
1088036979Doxepin (Adapin, Sinequan)TCA. Panic disorder, GAD, PTSD15
1088036982Imipramine (Tofranil)TCA. Panic disorder, GAD, PTSD16
1088036985Nortriptyline (Aventyl, Pamelor)TCA. Panic disorder, GAD, PTSD17
1088036986Monamine oxidase inhibitors (MAOIs)Reserved for treatment-resistant conditions because the risk of life-threatening hypertensive crisis if the patient does not follow dietary restrictions (pts cannot eat foods containing tyramine and must be given specific dietary instructions). Risk of hypertensive crisis contraindicated in those with comorbid substance abuse.18
1088036988Phenelzine (Nardil)MAOI. Panic disorder, social anxiety disorder, generalized anxiety disorder, PTSD19
1088036991Tranylcypromine (Parnate)MAOI. Panic disorder, social anxiety disorder, GAD, PTSD20
1088036994Antianxiety Drugs (Anxiolytics)Used to treat the somatic and psychological symptoms of anxiety disorders.21
1088036997BenzodiazepinesAnxiolytic. Benzodiazepines most commonly used because they have a quick onset of action. Benzos have potential for dependence, ideally used for short periods only until other medication or treatments reduce symptoms. Side effects: sedation, ataxia, decreased cognitive function. Not recommended for those with substance abuse, not during pregnancy or breastfeeding.22
1088036998Benzodiazepine MedsUsed to treat social anxiety disorder, panic disorder, GAD. Alprazolam (Xanax), clordiazepoxide (Librium), Clonazepam (Klonopin), diazepam (valium), lorazepam (Ativan), Oxazepam (Serax).23
1088037001NonbenzodiazepinesAlternative antianxiety medication that does not cause dependence but takes 2-4 weeks to reach full effects. Buspirone (BuSpar), may be used for long-term treatment and should be taken regularly.24
1088037002Other classes of medicationsB-blockers, antihistamines, anticonvulsants. Added if the first course of treatment is ineffective.25
1088037003AntihistaminesSafe, nonaddictive alternative to benzodiazepines to lower anxiety levels and helpful in pts with substance use problems. Used for GAD. Hydroxyzine hydrochloride (Atarax), hydroxyzine pamoate (Vistaril)26
1088037004Beta-BlockersBlock the nerves that stimulate the heart to beat faster and have been used to treat social anxiety disorder. Atenolol (Tenormin), Propranolol (Inderal).27
1088037005AnticonvulsantsShow some benefit in the management of GAD, PD, PTSD, SAD. Carbamazepine (Tegretol), Gabapentin (Neurontin), Valporic Acid (Depakote)28

Chapter 47 Animal Development Campbell Biology 9th Edition Flashcards

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1324653213Life Cycle of a FrogThe start of fertilization, the fusion of sperm and egg, which forms a zygote. Development proceeds with the cleavage stage, during which a series of cell divisions divide, or cleave, the zygote into a many-celled embryo. These cleavage divisions, which typically are rapid and lack accompanying cell growth, convert the embryo to a hollow ball of cells called a blastula. Next, the blastula folds in on itself, rearranging into a three-layered embryo, the gastrula, in a process called gastrulation. During organogenesis, the last major stage of embryonic development, local changes in cell shape and large-scale changes in cell location generate the rudimentary organs from which adult structure grow. Tail-bud embryo to larval stages to metamorphosis and finally to adult frog. (47.2)0
1324653214Model OrganismsAn organism selected for intensive scientific study based on features that make it easy to work with as in body size, life span, in the hope that findings will apply to other species.1
1324653215FertilizationThe formation of a diploid zygote from a haploid egg and sperm. Molecules and events at the egg surface play a crucial role in each step of fertilization.2
1324653216Acrosomal ReactionThe discharge of hydrolytic enzymes from the acrosome, a vesicle in the tip of a sperm, when the sperm approaches or contacts an egg.3
1327359636AcrosomeA specialized vesicle at the tip of the sperm.4
1327359637Fast Block to PolyspermyBy preventing additional sperm from fusing with the egg's plasma membrane, this depolarization acts as a fast block to polyspermy.5
1327359638Cortical ReactionA longer-lasting block to polyspermy is established by vesicles that lie just beneath the egg plasma membrane, in the rim of cytoplasm known as the cortex. Within seconds after a sperm binds to the egg, these vesicles, cortical granules, fuse with the egg plasma membrane. The secreted contents clip off sperm-binding receptors and cause the fertilization envelope to form. This acts as a slow block to polyspermy.6
1327359639Slow Block to PolyspermyThe fertilization envelope and other changes in the egg's surface impede the entry of additional sperm nuclei and thus act s a longer-term slow block to polyspermy.7
1327359640Fertilization in MammalsUnlike sea urchins and most other marine invertebrates, terrestrial animals, including mammals, fertilize eggs internally.8
1327359641Zona PellucidaA sperm must travel through this layer of follicle cells before it reaches the zona pellucida, the extracellular matrix of the egg. Within the zona pellucida is a component that functions as a receptor for sperm.9
1327359642CleavageOnce fertilization is complete, many animal species undergo a succession of rapid cell divisions that characterized the cleavage stage of early development.10
1327359643BlastomerersCleavage partitions the cytoplasm of the large fertilized egg into many smaller cells called blastomeres.11
1327359644BlastulaA hollow ball of cells that marks the end of the cleavage stage during early embryonic development in animals.12
1327359645BlastocoelThe fluid-filled cavity that forms in the center of a blastula.13
1327359646YolkIn frogs and many other animals, the distribution of yolk; stored nutrients, is a key factor influencing the pattern of cleavage. Nutrients stored in an egg.14
1327359647Vegetal PoleThe point at the end of an egg in the hemisphere here most yolk is concentrated; opposite of animal pole.15
1327359648Animal PoleThe point at the end of an egg in the hemisphere here the least yolk is concentrated; opposite of vegetal pole.16
1327359649HoloblasticReferring to a type of cleavage in which there is complete division of the egg; occurs in eggs that have little yolk; such as those of the sea urchin, or a moderate amount of yolk; such as those of the frog.17
1327359650MeroblasticReferring to a type of cleavage in which there is incomplete division of a yolk-rich egg, characteristic of avian development.18
1327359651Regulation of CleavageThe number of cleavage divisions varies among animals but appears to be controlled by a shared mechanism.19
1327359652MorphogenesisThe development of the form of an organism and its structures.20
1327359653GastrulationIn animal development, a dramatic reorganization of cell and tissue movements in the hollow blastula-stage embryo folds inward producing a two-layered or three-layered embryo called a gastrula.21
1327359654GastrulaAn embryonic stage in animal development encompassing the formation of three layers: ectoderm, mesoderm and endoderm.22
1327359655Germ LayersThe cell layers produced by gastrulation are collectively called the embryonic germ layers.23
1327359656EctodermIn the late gastrula, ectoderm form the outer layer. The outermost of the three primary germ layer in animal embryos; gives rise to the outer covering and, in some phyla, the nervous system, inner ear, and lens of the eye.24
1327359657EndodermLines the embryonic digestive compartment or tract. The innermost of the three primary germ layers in animal embryos; lines the archenteron and gives rise to the liver, pancreas lungs, and the lining of the digestive tract in species that have these structures.25
1327359658MesodermThe middle primary germ layer in a triploblastic animal embryo; develop into the notochord, the lining of the coelom, muscles, skeleton, gonads, kidneys, and most of the circulatory system in species that have these structures.26
1327359659Gastrulation in Sea UrchinsGastrulation in the sea urchin begins at the vegetal pole of the blastula.27
1327359660ArchenteronExtensive rearrangement of cells transforms the shallow depression into a deeper, narrower, blind-ended tube called the archenteron.28
1327359661BlastoporeIn a gastrula, the opening of the archenteron that typically develops into the anus in deuterostomes and the mouth in protostomes.29
1327359662Gastrulation in FrogsBegins when a group of cells on the dorsal side of the blastula begins to invaginate.30
1327359663Dorsal LipThe region above the blastopore on the dorsal side of the amphibian embryo.31
1327359664Gastrulation in ChicksThe starting point for gastrulation in chicks is an embryo consisting of upper and lower layers; the epiblast and hypoblast, lying atop a yolk mass.32
1327359665Primitive StreakThe pileup of cells moving inward at the blastoderm's midline produces a thickening called the primitive streak.33
1327359666Gastrulation in HumansUnlike the large, yolky eggs of many vertebrates, human eggs are quite small, storing little in the way of food reserves.34
1327359667BlastocystThe blastula stage of mammalian embryonic development, consisting of an inner cell mass, a cavity, and an outer layer, the trophoblast. In humans, the blastocyst forms 1 week after fertilization.35
1327359668Inner Cell MassAn inner cluster of cells at one end of a mammalian blastocyst that subsequently develops into the embryo proper and some of the extraembryonic membranes.36
1327359669TrophoblastThe outer epithelium of a mammalian blastocyst. It forms the fetal part of the placenta, supporting embryonic development but not forming part of the embryo proper.37
1327359670Extraembryonic MembranesOne of four membrane; yolk sac amnion, chorion, and allantois, located outside the embryo that support the developing embryo in reptiles and mammals.38
1327612174AmniotesMember of a clade of tetrapods named for a key derived character, the amniotic egg, which contains specialized membranes, including the fluid-filled amnion, that protect the embryo. Amniotes include mammals as well as birds and other reptiles.39
1327612175OrganogenesisThe process in which organ rudiments develop from the three germ layers after gastrulation.40
1327612176NotochordA longitudinal, flexible rod made of tightly packed mesodermal cells that runs along the anterior-posterior axis of a chordate in the dorsal part of the body.41
1327612177Neural TubeA tube of infolded ectodermal cells that runs along the anterior-posterior axis of a vertebrate, just dorsal to the notochord. It will give rise to the central nervous system.42
1327612178Neural CrestIn vertebrates, a region located along the sides of the neural tube here it pinches off from the ectoderm. Neural crest cells migrate to various parts of the embryo and form pigment cells in the skin and parts of the skull, teeth, adrenal glands, and peripheral nervous system.43
1327612179SomiteOne of a series of blocks of mesoderm that exist in pairs just lateral to the notochord in a vertebrate embryo.44
1327612180Mechanisms of MorphogenesisMorphogenesis is a major stage of development in both animals and plants, but only in animals does it involve the movement of cells.45
1327612181The Cytoskeleton in MorphogenesisThe cytoskeleton directs a different type of morphogenetic movement in promoting elongation of the archenteron in the sea urchin embryo.46
1327612182Convergent ExtensionA rearrangement of the cells of a tissue layer that causes the heet to become narrower; converge, while it becomes longer; extends.47
1327612183Programmed Cell DeathJust as certain cells of the embryo are programmed to change shape or location, others are programmed to die.48
1327612184ApoptosisA type of programmed cell death, which is brought about by activation of enzymes that break down many chemical components in the cell.49
1327612185DeterminationThe progressive restriction of developmental potential in which the possible fate of each cell becomes more limited as an embryo develops. At the end of determination, a cell is committed to its fate.50
1327612186DifferentiationThe process by which a cell or group of cells become specialized in structure and function.51
1327612187Fate MappingOne way to trace the ancestry of embryonic cells is direct observation through the microscope.52
1327612188Fate MapsDiagrams showing the structure arising from each region of an embryo.53
1327612189Axis FormationA body plan with bilateral symmetry is found across a range of animals, including nematodes, echinoderms, and vertebrates. The right-left axis is largely symmetrical, as the to sides are roughly mirror images of each other.54
1327612190Restricting Developmental PotentialThe range of structures to which it can give rise.55
1327612191TotipotentDescribing a cell that can give rise to all parts of the embryo and adult, as well as extraembryonic membranes in species that have them.56
1327612192Pattern FormationThe development of an animal's spatial organization, the arrangement of organs and tissues in their characteristic places in three-dimensional space.57
1327612193Positional FormationThe molecular cues that control pattern formation.58
1327612194Apical Ectodermal RidgeA thickened area of ectoderm at the tip of the bud.59
1327612195Zone of Polarizing ActivityA block of mesodermal tissue located underneath the ectoderm where the posterior side of the bud is attached to the body.60
1327612196Cilia and Cell FateCiliary function is essential for proper specification of cell fate in the human embryo.61

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While we strive to provide the most comprehensive notes for as many high school textbooks as possible, there are certainly going to be some that we miss. Drop us a note and let us know which textbooks you need. Be sure to include which edition of the textbook you are using! If we see enough demand, we'll do whatever we can to get those notes up on the site for you!