BRAIN
CRANIAL NERVES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of these facts about the spinal cord is (are) correct?
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There are pairs of spinal nerves that exit the spinal cord.
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The spinal cord extends inferiorly to the level of the fifth lumbar vertebra.
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The spinal cord is anchored to the coccyx by the filum terminale.
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Gray matter is superficial to the white matter of the spinal cord.
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Explanation:
Detailed explanation-1: -There are 31 pairs of spinal nerves and roots. Eight pairs of cervical nerves exit the cervical cord at each vertebral level. One member of the pair exits on the right side and the other exits on the left. The first cervical root exits above the C1 vertebra.
Detailed explanation-2: -Answer and Explanation: The answer is (A): all spinal nerves are mixed. All spinal nerves carry both motor and sensory fibers. Motor fibers exit the spinal cord via the ventral roots, whereas the sensory fibers enter the spinal cord through the dorsal roots.
There is 1 question to complete.