At Each Vertebral Level Is a Pair of Spinal Nerves,each

Multiple Choice

At each vertebral level is a pair of spinal nerves,each consisting of an anterior and a posterior root.Select the statement that represents true information about motor or sensory distribution.

A) The posterior root is the sensory root.
B) Skin dermatomes represent motor innervations.
C) The anterior root is the sensory root.
D) Spinal ganglia exit the spinal cord through the cauda equina.