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11 Cards in this Set
- Front
- Back
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Nerve structure
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nerve, fascicles, nerve fiber (axon)
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epineurium
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membrane around whole nerve
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perineurium
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membrane around fascicles
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endoneurium
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membrane around each axon
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relfex arc
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neural pathway of a reflex, simplest kind, consists of 2 neurons, bypasses the brain
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the reflex arc pathway
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stimulated, dendrites of sensory neuron, axon of sensory neuron, synapse, dendrites motor neuron, axon motor neuron, synapse, effector organ, reflex
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synapse
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space between 2 neurons
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effector organ
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organ causing reflex action (muscles)
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How impulses travel
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Na+ channels open and Na+ rushes in, sodium leaves, channel closes, next one opens, goes through axon to synapse
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neurotransmitter
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casuses Na+ channels to open
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salutatory conduction
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when impulse encounters section covered in myelin & jumps over it.
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