The destruction of a single dorsal root typically produces little somatosensory loss because
A) there are few cutaneous receptors in the back.
B) the dorsal roots soon degenerate.
C) there is considerable overlap between adjacent dermatomes.
D) the dorsal roots accurately regenerate.
E) none of the above

Question

Quizplus · Accepted Answer

Dermatomes are areas of skin that are innervated by a single dorsal root. However, there is considerable overlap between adjacent dermatomes, so the loss of a single dorsal root does not produce a significant reduction in somatosensory function.

The Destruction of a Single Dorsal Root Typically Produces Little