Term
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Definition
dendrites-collect info
cell body-maintain cell function
axons-carry info away from body |
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Term
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Definition
support neurons
Schwann cells-surround neural cells with a fatty sheath |
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Term
| resting potential charges |
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Definition
negative on inside and positive on outside
altereted by depolarization
Na in, K out |
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Term
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Definition
| gap between axon of one cell and dendrite of another |
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Term
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Definition
| necessary to get across synapse |
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Term
central nervous system
peripheral nervous system |
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Definition
central-spinal chord and brain (interneurons)
peripheral-nerves throughout body that carry info to and from CNS |
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Term
somatic nerves
autonomic nerves |
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Definition
somatic-sensory axons carry info to CNS, CNS sends to skeletal muscles
autonomic-carry info to and from internal organs |
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Term
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Definition
medulla oblongata (reflex fr breathing, sleep cycles), cerebellum (sensory from eyes, ears, muscles)
pons-flow |
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Term
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Definition
| tectum (reflex to sight and sound) |
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Term
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Definition
cerebrum-2 hemispheres, several lobes, complex thoughts
thalamus-sensory info (balance)
hypothalamus-internal activity (temperautre, blood pressure heartbeat)
limbic system-emotions-pain,anger,pleasure, hunger |
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Term
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Definition
| metal rod through his brain-destroyed limbic system |
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Term
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Definition
pinna-outer part
auditory canal-eardrum
cochlea-fluid filled chambers that give position of body |
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Term
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Definition
optic nerve carries to brain
blind spot |
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Term
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Definition
dermis-underlying layers of cells
epidermis-outermost layers
derivatives-feathers, claws, bills,horns |
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Term
| smooth, cardiac, skeletal |
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Definition
smooth-no control
cardiac-heart
skeletal-control, striations |
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Term
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Definition
contraction
myosin filament-sits between actin
myosin head attaches to actin |
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Term
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Definition
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