The complexity of the CNS can be attributed to
A) the large number of sensory neurons carrying information to the CNS.
B) the different types of receptors outside the CNS.
C) the large number of interneurons in the CNS.
D) the large number of motor neurons leaving the CNS.

Question

Quizplus · Accepted Answer

The complexity of the CNS is primarily due to the large number of interneurons within it. Interneurons allow for processing and integration of sensory information and are responsible for generating motor output, making them vital for the functioning of the CNS. While sensory neurons and receptors do play a role in transmitting information to the CNS, and motor neurons do carry information away from it, the bulk of the complexity arises from the interneurons within the CNS.

The Complexity of the CNS Can Be Attributed to