Information Coming into the Central Nervous System is Transmitted Along

Question

Information coming into the central nervous system is transmitted along ________ neurons.
A) afferent
B) sensory
C) efferent
D) afferent and sensory
E) sensory and efferent

Accepted Answer

Afferent and sensory neurons are essentially the same thing and transmit information FROM sensory receptors TO the central nervous system. Efferent neurons transmit information FROM the central nervous system TO muscles and glands, so they are not involved in transmitting information into the central nervous system. Therefore, the best choice is D, which includes both afferent and sensory neurons.