PHYSIOLOGY
CENTRAL NERVOUS SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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This nerve is the only cranial nerve that extend to the thoracic and lumbar region:
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Cranial Nerve III
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Cranial Nerve X
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Cranial Nerve IV
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Cranial Nerve V
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Explanation:
Detailed explanation-1: -vagus nerve, also called X cranial nerve or 10th cranial nerve, longest and most complex of the cranial nerves. The vagus nerve runs from the brain through the face and thorax to the abdomen.
Detailed explanation-2: -Function. The vagus nerve supplies motor parasympathetic fibers to all the organs, except the suprarenal (adrenal) glands, from the neck down to the second segment of the transverse colon. The vagus also controls a few skeletal muscles, most notably: Cricothyroid muscle.
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