Term
| 3 functions of the nervous system |
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Definition
-collect info
-process info
-elicit response |
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Term
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Definition
-most abundant glial cell
-anchor neurons to capillaries
-guide migration of neurons and synapse formation
-mop up leaked ions and neurotransmitters
-some release neurotransmitters
-tell capillaries to form tight junctions between BBB |
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Definition
-monitor health of neurons
-migrate towards injured neurons
-transform into macrophages and engulf and digest dead neurons |
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Term
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Definition
-line cavities of brain and spinal cord
-barrier between nervous tissue and CSF
-ciliated
-help circulate CSF and cushion the brain and spinal cord |
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Term
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Definition
-CNS
-branched
-form myelin sheath
-myelinate many axons at once |
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Term
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Definition
-surround large nerve fibers
-for myelin sheath |
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Term
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Definition
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Term
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Definition
-unmyelinated
-cell bodies |
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Term
| why myelin sheath contains little protein? |
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Definition
| -anchor axon and rings together |
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Term
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Definition
| -groups of cell bodies in CNS |
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Term
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Definition
| -groups of cell bodies in PNS |
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Definition
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Definition
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Definition
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Definition
| triangular region where cell body meets axon |
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Term
| axons depend on this for proteins |
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Definition
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Term
| important neuronal characteristics |
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Definition
-extreme longevity (last an entire lifetime)
-amitotic (except olfactory and hippocampus)
-high metabolic rate (needs a lot of glucose and oxygen) |
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Definition
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Definition
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Definition
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Term
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Definition
-many processes extend from cell body
-motor and interneurons
-Purkinje cell of cerebellum
-pyramidal cell |
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Term
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Definition
-2 processes extend from cell body
-sensory |
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Term
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Definition
-one process extends from cell body
-sensory |
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