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Cards In This Set
| Front | Back |
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What divides the spinal cord into left and right sides?
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Anterior/Posterior median fissure
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Where is gray matter located?
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Core of spinal cord
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Name and number the horns of the gray matter.
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2 anterior
2 posterior
2 lateral
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What do the anterior horns contain?
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Somatic neurons
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Where do the anterior horns send out impulses?
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Via ventral roots to skeletal muscle
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Where are the anterior horns the largest?
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Cervical, lumber areas
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What neurons do the posterior horns contain?
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Interneurons
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What neurons do the lateral horns contain?
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Autonomic (sympathetic) motor neurons
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Where do impulses from the lateral horns go to?
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Visceral organs
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Where are impulses sent out from the lateral horns|?
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Ventral roots
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Gray matter neurons are considered to be....
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Multipolar
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Where is white matter located?
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Outer spinal cord
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What is white matter composed of?
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Myelinated and unmyelinated nerve fibers
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White matter nerve fibers run in which directions?
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Ascending (sensory)
Descending (motor)
Tranversely (commissural)
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What are the name of the white matter columns (funiculi)?
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Anterior
Lateral
Posterior
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