Which dermatome is on the inner aspect of the forearm?

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Multiple Choice

Which dermatome is on the inner aspect of the forearm?

Explanation:
The skin area on the inner (medial) forearm is supplied by the T1 dermatome. In the upper limb, the T1 root covers the medial aspect of the forearm from elbow toward the wrist, while more lateral areas of the forearm and hand are supplied by other roots (for example, C6 tends to cover the lateral/radial side, including the thumb region). The other options correspond to different regions: L4 relates to the lower limb, and S1 to the posterior/lateral aspect of the foot. So, the inner forearm most accurately maps to T1.

The skin area on the inner (medial) forearm is supplied by the T1 dermatome. In the upper limb, the T1 root covers the medial aspect of the forearm from elbow toward the wrist, while more lateral areas of the forearm and hand are supplied by other roots (for example, C6 tends to cover the lateral/radial side, including the thumb region). The other options correspond to different regions: L4 relates to the lower limb, and S1 to the posterior/lateral aspect of the foot. So, the inner forearm most accurately maps to T1.

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