Term
| peripheral nervous system |
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Definition
-cranial nerves and spinal nerves
-comm. between CNS and rest of body |
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Term
| sensory (afferent) division |
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Definition
-somatic and visceral sensory nerve fibers
-conducts impulses from receptors to CNS |
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Term
| motor (efferent) division |
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Definition
-motor nerve fibers
-conducts impulses from CNS to effectors
(muscles and glands) |
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Term
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Definition
-voluntary
-conducts impulses from CNS to skeletal muscles |
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Term
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Definition
-visceral motor
-involuntary
-conducts impulses from CNS to cardiac and smooth muscles and glands |
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Term
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Definition
-"fight or flight"
-mobilizes body systems during activity |
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Term
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Definition
-rest/maintenance
-conserves energy
-promotes housekeeping functions during rest |
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Term
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Definition
-most abundant
-anchor neurons to capillaries
-guide migration of neurons and synapse formation
-mop up leaked ions (K) and NT
-some release NT
-stimulate tight junctions in BBB |
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Term
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Definition
-monitor health of neurons
-migrate towards injured neurons
-transform into macrophages and digest dead neurons
-important because immune cells can't cross BBB |
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Term
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Definition
-line cavities of brain and spinal cord
-involved with CSF not BBB
-barrier b/w nervous tissue and CSF
-ciliated
-help circulate CSF and cushion brain/SC |
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Term
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Definition
-CNS
-branched (up to 60)
-wrap around neurons to form myelin sheath
-many axons |
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Term
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Definition
-PNS
-surround larger nerve fibers and form myelin sheath
-small portion of axon |
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Term
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Definition
| surround cell body of peripheral neurons |
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Term
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Definition
| cell body/cytosol of schwann cell on outside of myelin sheath |
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Term
| multipolar neurons location |
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Definition
| purkinje cell of cerebellum and pyramidal cell |
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Term
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Definition
| olfactory and retinal cell |
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Term
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Definition
| dorsal root ganglion cell |
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