What dermatomal distribution is associated with C6 nerve root pain?

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Prepare for the Selected Cervical Pathologies, Dysfunctions, and Treatments Test with diverse question formats. Learn through explanations and hints to ensure understanding. Be exam-ready!

Multiple Choice

What dermatomal distribution is associated with C6 nerve root pain?

Explanation:
Dermatomal maps show sensory regions tied to each nerve root. For the C6 nerve root, the sensory territory is the lateral aspect of the forearm extending to the thumb. So when C6 is involved, you’d expect pain, numbness, or tingling in that lateral forearm and thumb area. The other regions point to different dermatomes: the medial forearm and little finger align with C8, the posterior arm isn’t a classic single dermatome for C6, and the anterior chest wall is supplied by thoracic nerves (like T2). Thus, the lateral forearm and thumb best match the C6 distribution.

Dermatomal maps show sensory regions tied to each nerve root. For the C6 nerve root, the sensory territory is the lateral aspect of the forearm extending to the thumb. So when C6 is involved, you’d expect pain, numbness, or tingling in that lateral forearm and thumb area. The other regions point to different dermatomes: the medial forearm and little finger align with C8, the posterior arm isn’t a classic single dermatome for C6, and the anterior chest wall is supplied by thoracic nerves (like T2). Thus, the lateral forearm and thumb best match the C6 distribution.

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