Which path describes the distribution of the L4 dermatome?

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Multiple Choice

Which path describes the distribution of the L4 dermatome?

Dermatomes map skin sensation to specific spinal nerves. The L4 dermatome travels along the medial aspect of the leg, extending from the knee down toward the ankle and into the medial foot and big toe region. That makes “down the medial leg” the description that matches L4 most closely. The other descriptions align with different nerve levels: the medial thigh corresponds to higher lumbar levels (near L2-L3), the web space between the first and second toes is typical of L5 (or related deep peroneal territory), and the upper anterior thigh is also more in the L2-L3 range.

Dermatomes map skin sensation to specific spinal nerves. The L4 dermatome travels along the medial aspect of the leg, extending from the knee down toward the ankle and into the medial foot and big toe region. That makes “down the medial leg” the description that matches L4 most closely. The other descriptions align with different nerve levels: the medial thigh corresponds to higher lumbar levels (near L2-L3), the web space between the first and second toes is typical of L5 (or related deep peroneal territory), and the upper anterior thigh is also more in the L2-L3 range.

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