Which dermatome level corresponds to the medial antecubital fossa?

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Multiple Choice

Which dermatome level corresponds to the medial antecubital fossa?

Explanation:
Dermatomes are skin regions innervated by a single spinal nerve root. The medial antecubital fossa—the inner elbow crease—sits on the medial forearm, and the T1 dermatome runs along the medial forearm toward the elbow. So that skin area is supplied by the T1 nerve root, making it the best match. For context, higher cervical dermatomes cover the neck and shoulder, the groin area maps to the lumbar region, and the back of the leg/sole maps to S1, none of which align with the inner elbow.

Dermatomes are skin regions innervated by a single spinal nerve root. The medial antecubital fossa—the inner elbow crease—sits on the medial forearm, and the T1 dermatome runs along the medial forearm toward the elbow. So that skin area is supplied by the T1 nerve root, making it the best match. For context, higher cervical dermatomes cover the neck and shoulder, the groin area maps to the lumbar region, and the back of the leg/sole maps to S1, none of which align with the inner elbow.

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