What is the relationship between the afferent and efferent neurons of the reflex arc?
A)The afferent neurons move signals to the CNS, and the efferent neurons move signals away from the CNS.
B)The afferent neurons move signals away from the CNS, and the efferent neurons move signals to the CNS.
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 sensory receptors to the central nervous system (CNS), while efferent neurons carry signals away from the CNS to muscles or glands. In a reflex arc, afferent neurons detect a stimulus, and the resulting signals are sent to the spinal cord or brain stem (CNS) for processing. Efferent neurons then transmit signals from the CNS back to the target organ to produce the reflex response.

What Is the Relationship Between the Afferent and Efferent Neurons