In a reflex arc, which of the following resides completely within the spinal column?
A) interneurons
B) sensory neurons
C) receptors
D) motor neurons
E) effectors

Question

Quizplus · Accepted Answer

Interneurons are the neurons that connect sensory and motor neurons within the spinal cord, and as such, they reside completely within the spinal column in a reflex arc. Sensory neurons enter the spinal cord through the dorsal root and motor neurons exit the spinal cord through the ventral root to activate effectors, which can be muscles or glands. Receptors are specialized sensory structures that detect a stimulus and convert it into an electrical signal that sensory neurons can transmit.

In a Reflex Arc, Which of the Following Resides Completely