Question

Regarding the gray matter and the white matter of the spinal cord, which statement is most accurate?

A) The gray matter is myelinated and is composed of cell bodies and dendrites. The white matter is composed of axons.
B) The gray matter is unmyelinated and is composed of cell bodies and dendrites. The white matter is myelinated and is composed of axons
C) The gray matter is myelinated, and this is a characteristic of axons. The white matter is composed of cell bodies and dendrites.
D) The gray matter is unmyelinated and is composed of axons. The white matter is myelinated and is composed of cell bodies and dendrites.
E) The gray matter is unmyelinated, and the white matter is myelinated. However, the myelination really has very little to do with whether the matter is composed of axons, dendrites, or cell bodies.

A) A is correct
B) All are correct
C) A, B, C are correct
D) E is correct

Answer 1

The gray matter is unmyelinated and is composed of cell bodies and dendrites. The white matter is myelinated and is composed of axons.

Step-by-step explanation:

The most accurate statement regarding the gray matter and the white matter of the spinal cord is B) The gray matter is unmyelinated and is composed of cell bodies and dendrites. The white matter is myelinated and is composed of axons.

The gray matter of the spinal cord is mainly composed of cell bodies and dendrites, which are responsible for receiving most of the input from other neurons. On the other hand, the white matter consists of myelinated axons, which are the fibers that connect neurons with their target.

This division between gray matter and white matter is responsible for different functions within the spinal cord, with the gray matter processing sensory information and the white matter transmitting motor commands from the brain.