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28 Cards in this Set
- Front
- Back
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central nervous system
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the brain and spinal cord.
brain-voluntary and involuntary behaviors spinal cord-involved in reflexes |
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sensory (afferent) neurons
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carry info towards the CNS from the periphery.
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motor (efferent) neurons
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carry info to periphery from CNS
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interneurons
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connect the sensory and motor neurons
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peripheral nervous system
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all the nerves outside the brain and spinal cord
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somatic Nervous system
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part of PNS. controls voluntary muscle movement
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autonomic nervous system
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part of PNS. regulates the automatic bodily functions and homeostasis, controls fight or flight
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sympathetic nervous system
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dominates when the body in under physically or mental stress
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parasympathetic nervous system
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dominates when in a relaxed state after SYNS
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nervous system branches
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nervous system
central nervous sys peripheral nervous sys brain&spinal cord. somatic ns autonomic ns pans & Syns |
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structure of a nueron
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dendrite, axon terminal button, nucleus , axon , myelin sheath, soma(body cell)
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neuron
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-thin cells of nerve tissue which communicate through an electronic chemical process to, from and in the brain.
group of neurons make a nerve |
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dendrites
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gather\receives neurotransmitters from the sending neurons
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axon
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carries an electrical charge (action potential) from the cell body to the ATB
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myelin sheath
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fatty substance that protects the axon
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axon terminal buttons
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hold neurotransmitters until released
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soma(body cell)
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contains nucleus and provides cell structure
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epinephrine
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adrenaline
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dopaminine
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pleasure, emotion, attention,arousal
to much - schizophrenia to little- Parkinson's drugs-cocaine, amphetamines |
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seritonin
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affects mood, sleep, appetite
lack of- depression to much-ocd drugs- antidepressants ,prozack |
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acetylcholine
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muscle action, attention, memory
receptor sites may be stimulated by nicotine botox black widow venom to much-muscle contractions, suffocating |
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endorphines
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brains attempt to block/handle pain and pleasurable emotions
exercise may stimulate the body to produce it |
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GABA
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natural inhibator on all receptor sites
drugs-valium and other anti anxiety drugs |
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norepindphrine
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helps regulate mood and emotion
effected by cocaine and amphetamines |
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glutimate
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excitatory
helps with memory and learning to much- migraine seizures or anxiety |
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what is biological phycology?
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the scientific study of the influence of the nervous system, hormones and chemicals on behavior thinking and emotions
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antagonist
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block receptor sites inhibitor
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agonist
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mimic neurotransmitters excitatory
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