The decussation in the medullary pyramids is part of the
A) dorsolateral corticospinal tract.
B) dorsolateral corticorubrospinal tract.
C) ventromedial corticospinal tract.
D) ventromedial cortico-brainstem-spinal tract.
E) both C and D

Question

Quizplus · Accepted Answer

The decussation in the medullary pyramids is part of the dorsolateral corticospinal tract, which carries motor signals from the cortex to the spinal cord. Option B is incorrect because the corticorubrospinal tract does not pass through the pyramids, but rather the red nucleus. Options C and D are both incorrect as they do not involve the medullary pyramids.

The Decussation in the Medullary Pyramids Is Part of the