Gray matter of the spinal cord is mostly composed of
A) interneurons.
B) cerebrospinal fluid.
C) axons.
D) myelin.

Question

Quizplus · Accepted Answer

The gray matter of the spinal cord mainly contains interneurons, which are responsible for relaying information between sensory and motor neurons. The cerebrospinal fluid is found in the central canal of the spinal cord and does not make up the majority of the gray matter. Axons are found in the white matter of the spinal cord, which surrounds the gray matter. Myelin is a fatty substance that covers axons and is not a major component of the gray matter.

Gray Matter of the Spinal Cord Is Mostly Composed of