The ________ of each spinal nerve innervates the skin and muscles of the back.
A)white ramus communicantes
B)gray ramus communicantes
C)dorsal ramus
D)ventral ramus
E)dermatome

Question

Quizplus · Accepted Answer

The dorsal ramus of each spinal nerve innervates the skin and muscles of the back through a network of small branches. The white and gray ramus communicantes are responsible for carrying autonomic motor and sensory fibers between the spinal cord and the sympathetic chain ganglia. The ventral ramus provides innervation to the muscles and skin of the anterior and lateral trunk, as well as the limbs. A dermatome is a specific area of skin supplied by a single spinal nerve.

The ________ of Each Spinal Nerve Innervates the Skin and Muscles