Transection of the dorsal roots of spinal nerves C5 through T1 results in________ .
A)loss of movement in the upper limb on the opposite side of the body
B)loss of sensation in the upper limb on the same side of the body
C)loss of sensation in the upper limb on the opposite side of the body
D)loss of movement in the upper limb on the same side of the body

Question

Quizplus · Accepted Answer

The dorsal roots of spinal nerves contain sensory fibers. Transecting these roots would lead to a loss of sensation in the dermatomes supplied by these nerves, which in this case corresponds to the upper limb on the same side of the body where the transection occurred.

Transection of the Dorsal Roots of Spinal Nerves C5 Through