The Motor Root of a Spinal Nerve is Also Referred

Question

The motor root of a spinal nerve is also referred to as the
A) afferent root.
B) dorsal root.
C) posterior root.
D) ventral root.
E) sensory root.

Accepted Answer

The motor root of a spinal nerve is also known as the ventral root. This is because it contains motor neurons that exit the spinal cord and innervate muscles and glands in the body. Afferent roots, dorsal roots, posterior roots, and sensory roots all refer to the other half of the spinal nerve, which carries sensory information from the body back to the spinal cord.