The cerebellar peduncles conduct information into and out of the cerebellum. The correct statement is
A) the superior cerebellar peduncles conduct only sensory information.
B) the inferior cerebellar peduncles contain only motor fibers.
C) the middle cerebellar peduncles contain only afferent (sensory) fibers.
D) none of these choices.

Question

Quizplus · Accepted Answer

The cerebellar peduncles are complex structures that carry both sensory and motor information. The superior cerebellar peduncles primarily carry motor information from the cerebellum to the rest of the brain, the inferior cerebellar peduncles carry sensory and some motor information into the cerebellum, and the middle cerebellar peduncles carry primarily afferent fibers from the cerebral cortex and pontine nuclei into the cerebellum. Therefore, none of the statements A, B, or C, which suggest exclusivity of function (only sensory or only motor), are correct.

The Cerebellar Peduncles Conduct Information into and Out of the Cerebellum