Question

The superior cerebellar peduncle has pathways that are ___________, while the middle cerebellar peduncle pathways are _____________, and the inferior cerebellar peduncle pathways are _____________.

A. Afferent, afferent, both (afferent and efferent)
B. Both (afferent and efferent), efferent, afferent
C. Efferent, afferent, both (afferent and efferent)
D. Afferent, efferent, both (afferent and efferent)
E. Efferent, efferent, afferent

Answer 1

The superior cerebellar peduncle has efferent pathways, while the middle cerebellar peduncle pathways are afferent, and the inferior cerebellar peduncle pathways are both afferent and efferent.

Step-by-step explanation:

The pathways of the superior cerebellar peduncle are efferent, meaning they carry motor commands from the cerebellum to other parts of the brain and spinal cord. The middle cerebellar peduncle pathways are afferent, meaning they carry sensory feedback from the body to the cerebellum. The inferior cerebellar peduncle pathways are both afferent and efferent, carrying sensory information from the body to the cerebellum and motor commands from the cerebellum to other parts of the brain and spinal cord.