MEDICAL
NERVES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Spinal nerves of S.l-3
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Anterior rami of spinal nerves L.2, 3
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Posterior rami of spinal nerves L. 1 to coccygeal 1
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Anterior and posterior nerve roots of the spinal nerves below the first lumbar segment of the spinal cord.
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Spinal nerves of L.l-5
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Detailed explanation-1: -The spinal cord ends around L1, consequently, the caudal nerve roots below the first lumbar root, form the cauda equina.
Detailed explanation-2: -The cauda equina (from Latin tail of horse) is a bundle of spinal nerves and spinal nerve rootlets, consisting of the second through fifth lumbar nerve pairs, the first through fifth sacral nerve pairs, and the coccygeal nerve, all of which arise from the lumbar enlargement and the conus medullaris of the spinal cord.
Detailed explanation-3: -The cauda equina (CE) is a bundle of intradural nerve roots at the end of the spinal cord, in the subarachnoid space distal to the conus medullaris. Cauda is Latin for tail, and equina is Latin for horse (ie, the “horse’s tail").