Longest nerve in human body
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Optic
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Cranial
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Vagus
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Sciatic
D
Correct answer
Explanation
The sciatic nerve is the longest nerve in the human body, running from the lower back down through the leg to the foot. It's about 1 meter long in adults. Cranial and optic nerves are much shorter. The vagus nerve is long but doesn't extend as far as the sciatic.