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Psychology Themes and Variations 9e Chapter 3 Flashcards

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1031651941neuronscells in the nervous system that receive integrate and transmit information
1031651942somacell body of a neuron that contains the nucleus and chemical machinery common to most cells
1031651943dendritepart of the neuron that receives information
1031651944axonlong thin fiber that transmits signals away from the soma to other neurons muscles or glands
1031651945myelin sheathinsulates the axons ensuring that the messages transmit at higher speeds, loss of the sheath is a loss of muscle control; babies or those with MS
1031651946terminal buttonsknobs that release chemicals called neurotransmitters
1031651947neurotransmitterschemicals that activates neighboring neurons
1031651948synapsejunction when information is transmitted to and from neurons
1031651949gilasupport for neurons like glue
1031651950resting potentialstable negative charge that a neuron is in when in active
1031651951action potentialwhen positive ions rush through the gate and the neuron is momentarily positively charged, how the neurons send a signal
1031651952absolute refectory periodthe dip behind an action potential in which a another action potential can not happen thus keeping all action potentials going the same directions
1031651953synaptic cleftgap between the terminal button and the cell membrane of another neuron
1031651954post synaptic potentialafter a lot of synapses it creates a voltage change at the receptor at the post synaptic cell membrane
1031651955reuptakethe process of the neurotransmitters are sponged up by the presynaptic membrane
1031651956endorphinsinternally produced chemical that resembles opiates in structure and effect
1031651957peripheral nervous systemnerves that lie outside the brain or spinal cord
1031651958nervesbundle of axons that are routed together in the peripheral nervous system
1031651959somatic nervous systemconnect voluntary skeletal muscles to sensory receptors
1031651960afferent nerve fibercarry information into the central nervous system from the periphery body
1031651961efferent nerve fibersaxons that carry information from the central nervous system to the periphery body
1031651962autonomic nervous systemnerves that connect heart; blood vessels; smooth muscles and glads.
1031651963sympathetic divisionfight or flight response, mobilizes the body's resources for emergencies
1031651964central nervous systemconnects the brain to the spinal cord
1031651965spinal cordconnects the brain to the body through the peripheral system base of the brain to the middle of the waist
1031651966lesioningdestroying a piece of the brain, done to research the brain in animals
1031651967electric stimulation of the brainsending a current through the brain to activate it
1031651968hindbarinincludes cerebellum and the brain stem [the medulla and the pons]
1031651969medullaattaches the brain and spinal cord; controls breathing maintaining muscle tone and regulating circulation
1031651970ponsrelays infro for RF and cerebellum
1031651971cerebellumlocated in the back of the brain; coordination and balance
1031651972midbrainsegment of brain stem that lies between the hind brain and the forebrain; integrates sensory processes and control dopamine
1031651973reticular formationflight mechanism; modulation of muscles reflexes breathing and pain receptors regulates sleep and arousal
1031651974fore braincontains everything else!
1031651975cerebrumcomplex thought
1031651976cerebral cortexouter layer of the brain
1031651977thalamuswhere all senses except smell are passed through to the cerebral cortex
1031651978hypothalamusfighting, fleeing, feeding and sex
1031651979limbic systememotion behavior motivation; hippocampus, amygdala, basal ganglia
1031651980hippocampusresponsible for memory consolidation of memory for factual information
1031651981amygdalalearning a fear response and basic emotion
1031651982cerebra hemispheresright and left half of the brain
1031651983corpus callosumwhat connects the 2 hemispheres
1031651984occipital lobelocated in the back used for sight
1031651985parietal lobein front of the occipital lobe used for touch
1031651986temporal lobebelow the parietal lobe used for auditory processing
1031651987frontal lobeall the front of the brain responsible motor skills
1031651988mirror neuronsactivated by performing or watching someone else perform an action
1031651989prefrontal cortexpossibly used for decision making
1031651990neurogenisisthe formation of neurons
1031651991endocrine systemsecretes glands that secrete chemicals into the bloodstream that help control bodily functions
1031651992hormoneschemical substances released by the endocrine system
1031651993pituitary glandreleases hormones that stimulate the endocrine system "master gland"
1031651994oxytocinregulates reproductive behavior
1031651995chromosomesmolecules that carry genetic information
1031651996genesdna segments that code for hereditary transmission
1031651997polygenic traitscharacteristics influenced by more than one pain of genes
1031651998family studiesthe study to traits being passed down through generations
1031651999twin studiesVe+Vg=Vp
1031652000adoption studieswhat is inherited due to nurture
1031652001epigeneticheritable changes in the gene expression that do not involve modifications to the dna sequence
1031672321basal gangliaresponsible for movement

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