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10 Cards in this Set
- Front
- Back
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Name the parts of a neuron. |
Dendrite, Cell body, Axon. |
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What is the function of the dendrite? |
Receives impulses and sends them towards the cell body |
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What is the function of the cell body? |
Expresses proteins required for nerve transmission |
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What is the function of the axon? |
Carries impulses away from cell body towards synapse and the next neuron |
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Describe the movement of an impulse through a neuron. |
Dendrite » Cell Body » Axon |
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What is the function of the myelin sheath? |
Insulate the axon and increase the speed of impulse conduction. |
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Describe the process of myelination. |
Glial cells produce myelin sheath- this continues from birth to adolescence. |
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Explain why individuals under 2 are not as coordinated as older individuals. |
Their myelin sheath is not fully developed so their responses to stimuli are not as rapid or coordinated. |
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Why can multiple sclerosis cause loss of coordination? |
Multiple sclerosis destroys the myelin sheath which causes loss of nerve functions and coordination. |
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What are two functions of glial cells? |
To physically support neurons and to produce myelin sheath. |
