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AP Psychology - Biological Bases of Behaviour Flashcards

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5681071261Neuroanatomythe study of the parts and function of neurons0
5681075850Nueronindividual nerve cells1
5681077282Dendritesrootlike parts of the cell that stretch out from the cell body; make synaptic connections with other neurons2
5681084737Cell Body (Soma)contains the nucleus and other parts of the cell needed to sustain life3
5681087694Axonwirelike structure ending in the terminal buttons that extends from the cell body4
5681090482Myelin Sheatha fatty covering around the axon of some neruons that speeds neural impulses5
5681094082Terminal Buttonsthe branched end of the axon that contains neurotransmitters6
5681096482Neurotransmitterschemicals contained in terminal buttons that enable neurons to communicate; fit into receptor sites on the dendrites of neurons (key and lock)7
5681102470Synapsethe space between the terminal buttons of one neuron and the dendrites of the next neuron8
5681344855Receptor Sitesprotein molecules on neurons' dendrites or soma that are specifically shaped to accommodate a specific neurotransmitter molecule9
5681380740Thresholdthe level of neurotransmitters that must be received10
5681390787Action Potentialthe electric message firing11
5681393564All-Or-None Principlea neuron either fires completely or not at all12
5681422191Excitatory Neurotransmittersthey excite the next cell into firing13
5681424272Inhibitory Neurotransmittersthey inhibit the next cell from firing14
5681442349Acetylcholinemotor movement -lack of: Alzheimer's15
5681447844Dopaminemotor movement and alertness -lack of: Parkinson's -overabundance: Schizophrenia16
5681483759Endorphinspain control -addictions17
5681484913Serotoninmood control -lack of: Depression18
5681500815GABAinhibitory -seizures, sleep problems19
5681507081Afferent Neurons (sensory)take information from the senses to the brain20
5681511693Efferent Neurons (motor)take information from the brain to the rest of the body21
5681513526Central Nervous Systembrain & spinal cord (all nerves housed within bone)22
5681519866Spinal Corda bundle of nerves that run through the centre of the spine, transmits information from the rest of the body to the brain23
5681528352Peripheral Nervous Systemall the nerves in your body not encased in bone24
5681532082Somatic Nervous Systemcontrols our voluntary muscle movements25
5681534251Autonomic Nervous Systemcontrols the automatic functions of our body26
5681543731Sympathetic Nervous Systemmobilizes our body to respond to stress; accelerates some functions27
5681547596Parasympathetic Nervous Systemresponsible for slowing down our body after a stress response28
5681558152Accidentsan unfortunate incident that happens unexpectedly and unintentionally, typically resulting in damage or injury. -Phineas Gage29
5682704985Lesionsthe removal or destruction of part of the brain30
5682718214Electroencephalogram (EEG)detects brain waves -examine what type of waves the brain produces during different stages of consciousness31
5682723679Computerized Axial Tomography (CAT)sophisticated x-ray -uses several x-ray cameras that rotate around the brain and combine the images into a detailed 3D picture of the brains STRUCTURE32
5682732078Magnetic Resonance Imaging (MRI)magnetic fields -measure density and location of brain material33
5682733345Positron Emission Tomography (PET)see what area of the brain is most active during certain tasks -how much of a certain chemical parts of the brain are using34
5682747359Functional MRI (fMRI)combines MRI and PET -shows details of brain structure with information about blood flow in the brain; MUCH QUICKER35
5691380769Hindbrainstructures in the top part of the spinal cord -our life support system; controls the basic biological functions that keep us alive36
5691421081Medullainvolved in the control of our blood pressure, heart rate, and breathing37
5691454755Ponsa brain stem structure having sensory and motor tracts whose functions are involved in sleep and dreaming -connects hindbrain and forebrain38
5691510675Cerebelluma convoluted hindbrain structure involved in motor coordination and some aspects of learning and memory39
5691525617Midbrainbrain structures above the hindbrain that are involved in sensory and motor functions and in an attention and states of consciousness -coordinate simple movements with sensory information40
5691631323Reticular Formationa structure extending from the hindbrain to the midbrain that plays a central role in consciousness and attention, in part by alerting and activating higher brain centres, and by selectively blocking some inputs from admission to higher regions in the brain41
5691795926Forebrainbrain structures above the midbrain, including the thalamus, hypothalamus, limbic system, and the central hemispheres; involved in higher-order sensory, motor, and cognitive functions42
5691851728Thalamusa major sensory integration and relay centre in the forebrain, sometimes referred to as the brain's sensory switchboard43
5691870786Hypothalamusa forebrain structure located below the thalamus and above the pituitary glad that controls autonomic and hormonal aspects of motivation and emotional behaviour44
5691929416Amygdalaa limbic system structure that helps to organize emotional response patterns45
5692185442Hippocampusa structure of the limbic system that plays a key role in the formation and storage of memories46
5692210680Limbic Systema group of subcortical structures, including the hippocampus and amygdala, which are involved in organizing many goal directed and emotional behaviours47
5692227181Cerebral Cortexthe grey, convoluted outer covering of the brain that is the seat of a higher-order sensory, motor, perceptual, and mental processes48
5692285545Hemispherescerebral cortex is divided into two; left and right49
5692297401Left Hemispheregets sensory messages and controls the motor function of the right half of the body -logic and sequential tasks50
5692361002Right Hemispheregets sensory messages and controls the motor function of the left half of the body -spatial and creative tasks51
5692408339Brain Lateralizationthe specialization of function in each hemisphere52
5692527247Corpus Collosuma broad band of white, myelinated fibres that connect the left and right cerebral hemispheres and allow the two hemispheres to communicate with eachother53
5692610201Lobes8 in the cerebral cortex54
5692783521Association Areaan area of the cerebral cortex that is not associated with receiving sensory information or controlling muscle movements55
5692867663Frontal Lobethe anterior portion of the cerebral hemispheres that includes Broca's speech production area, the motor cortex, and associative cortex involved in planning and problem solving56
5692889464Broca's Areaa region of the left frontal lobe involved in speech production57
5692898968Wernicke's Areaan area of the left temporal love that is involved in speech comprehension58
5692918054Motor Cortexcortical area in the back of the frontal lobes that controls voluntary movements on the opposite sides of the body59
5692935407Parietal Lobethe cerebral region behind the frontal lobe that contains the somatic sensor cortex and Wernicke's speech comprehension area60
5692952820Sensory Cotexlocated right behind the motor cortex in the frontal lobe; thin vertical strip that receives incoming touch sensations from the rest of our body61
5692981979Occipital Lobehe rearmost portion of the cerebral cortex that contains the primary visual sensory area62
5692992102Temporal Lobethe portion of the cortex that lies below the parietal lobes and is the major site of auditory input to the brain63
5693009903Brain Plasticityother parts of the brain can adapt themselves to perform other functions if needed64
5693039611Endocrine Systema system of glands that secrete hormones that affect many different biological processes in our bodies65
5693050919Adrenal Glandsproduce adrenaline, which signals the rest of the body to prepare for fight or flight66
5693058914Monozygotic Twinsidentical twins that share all the same genetic material; researchers study them in order to examine the influence of genes on human traits67

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