Most axons of the dorsolateral corticorubrospinal tract synapse on
A) muscles of the fingers and thumb.
B) muscles of the hands and wrists.
C) interneurons of the spinal gray matter that in turn synapse on motor neurons that project to the distal muscles of the arms and legs.
D) motor neurons that project to the fingers.
E) Betz cells.

Question

Quizplus · Accepted Answer

The dorsolateral corticorubrospinal tract is involved in voluntary movements of the limbs. Most of its axons synapse on interneurons in the spinal gray matter, which then synapse on motor neurons that project to the distal muscles of the arms and legs.

Most Axons of the Dorsolateral Corticorubrospinal Tract Synapse on