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4 Cards in this Set
- Front
- Back
- 3rd side (hint)
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neuron
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A nerve cell, the basic building block of the nervous system
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Dendrite
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A neuron's bushy, branching extensions that receive messages and conduct impulses towards the cell body
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axon
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The neuron extension that passes messages through its branches to other neurons or to muscles or glands
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myelin sheath
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A fatty tissue layer segmentally encasing the axons of some neurons; Enables vastly greater transmission speeds as neural impulses hop from one node to the next
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If this degenerates, multiple sclerosis results; communication to muscles slow, with eventual loss of muscle control
Covers the axon of some neurons and helps speed neural impulses |
