PHYSIOLOGY
CENTRAL NERVOUS SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Pudendal and femoral nerves
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Pudendal and tibial nerves
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Common fibular and tibial nerves
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Pudendal and common peroneal nerve.
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Detailed explanation-1: -The sciatic nerve is the largest nerve in the human body and is derived from the sacral plexus. It originates from the anterior rami of the lower lumbar (L4-L5) and upper sacral spinal nerves (S1, S2, S3). It contains fibers from both the posterior and anterior divisions of these spinal nerves.
Detailed explanation-2: -The nerve originates from the ventral rami of spinal nerves L4 through S3 and contains fibers from both the posterior and anterior divisions of the lumbosacral plexus.
Detailed explanation-3: -From its origin to its termination, the two divisions of the sciatic nerve-tibial nerve (medial position) and peroneal nerve (lateral position)-are distinctly separate. The two divisions, however, are combined into one large single nerve trunk by a connective tissue sheath.