Question

Which of the following structures is found primarily in white matter?

A) axon terminals
B) dendrites
C) myelinated axons
D) neuron cell bodies
E) both C and D

Answer 1

The structure found primarily in white matter is myelinated axons, which are insulated by myelin to facilitate the fast transmission of electrical signals.

Step-by-step explanation:

The structure found primarily in white matter is C) myelinated axons. White matter in the nervous system consists mainly of myelinated axons. These axons are insulated by a fatty substance called myelin, which facilitates the fast transmission of electrical signals. Myelinated axons stand in contrast to the gray matter, which primarily contains neuron cell bodies and dendrites. The neuron cell bodies are typically found in the gray matter, not the white matter, and dendrites are responsible for receiving signals rather than transmitting them over long distances like myelinated axons do..