Dermatome for the little toe is which spinal level?

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Study for the NBME Gross Anatomy High Yield Test. Enhance your learning with flashcards and multiple-choice questions, each detailed with hints and explanations. Prepare effectively for your anatomy exam!

Multiple Choice

Dermatome for the little toe is which spinal level?

Explanation:
Dermatomes map skin areas to a specific spinal nerve root. The little toe lies on the lateral side of the foot, and its cutaneous sensation is carried mainly by the S1 dermatome. That makes S1 the region whose dorsal root contributes most to sensation of the fifth toe and the lateral plantar surface. Other levels cover different parts of the foot (L4 around the medial foot, L5 on the dorsum including the big toe region, S2 extending to the posterior calf and heel), but the fifth toe is classic for S1.

Dermatomes map skin areas to a specific spinal nerve root. The little toe lies on the lateral side of the foot, and its cutaneous sensation is carried mainly by the S1 dermatome. That makes S1 the region whose dorsal root contributes most to sensation of the fifth toe and the lateral plantar surface. Other levels cover different parts of the foot (L4 around the medial foot, L5 on the dorsum including the big toe region, S2 extending to the posterior calf and heel), but the fifth toe is classic for S1.

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