What is the relationship between the afferent and efferent neurons of the reflex arc?
A) The afferent neurons move signals to the central nervous system and the efferent neurons move signals away from the central nervous system.
B) The afferent neurons move signals away from the central nervous system and the efferent neurons move signals to the central nervous system.
C) Afferent neurons are present in the brain and efferent neurons are present at the sensory site.
D) None. Efferent neurons are only present in gray matter of the brain and are needed for the reflex arc to work correctly.

Question

Quizplus · Accepted Answer

Afferent neurons carry signals from the sensory receptor to the central nervous system, while efferent neurons carry signals from the central nervous system to the effector (muscles or glands). In a reflex arc, the afferent neurons are responsible for detecting the stimulus and transmitting it to the central nervous system, and the efferent neurons carry out the response to the stimulus.

What Is the Relationship Between the Afferent and Efferent Neurons