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| nerve fibers, carry impulses TOWARD cell body |
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| nerve fibers,carry impulses AWAY from cell body |
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| provides protien molecules needed for the tranmission of nerve signals |
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| gaps in myelin sheath, increase speed of nerve impulse |
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| distal, branching tips of axon |
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| found in brain and spinal cord; many dendrites, 1 axon |
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| found in eye, ear, olfactory pathways; least numerous |
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| support neurons, do not conduct info |
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5
-astrocytes
-microglia
-ependymal cells
-oligodendrocytes
-schwann cell |
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| "feeds" the neuron, helps from blood-brain barrier; largest & most numerous |
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| line fluid filled cavities in brain & spinal cord |
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| produces myelin sheath around nerve fibers in CNS |
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produces fatty myelin sheath around nerve fibers in PNS
-neuritemma: sheath, essential to regeneration of injured nerve fibers; regeneration will only occur if neurilemma & cell bodies are intact |
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| made up of cell bodies & unmyelinated fibers in CNS; ganglia & unmyelinated fiber in the PNS |
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| surrounds each nerve fiber |
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| bundles of nerve fibers with their endoneurium |
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