The descending pathway illustrated here is the
A) dorsolateral corticorubrospinal tract.
B) dorsolateral corticospinal tract.
C) ventromedial corticospinal tract.
D) ventromedial cortico-brainstem-spinal tract.
E) none of the above

Question

The descending pathway illustrated here is the 
A) dorsolateral corticorubrospinal tract. 
B) dorsolateral corticospinal tract. 
C) ventromedial corticospinal tract. 
D) ventromedial cortico-brainstem-spinal tract. 
E) none of the above

Quizplus · Accepted Answer

The dorsolateral corticospinal tract is a descending pathway that originates from the primary motor cortex and travels through the posterior limb of the internal capsule, the crus cerebri of the midbrain, and the lateral column of the spinal cord. This tract is responsible for voluntary movement of the limbs and digits.

The Descending Pathway Illustrated Here Is the