Which of the following is not true of corticospinal fibers?
A)They may synapse directly on alpha motor neurons.
B)They may synapse directly on gamma motor neurons.
C)They may synapse directly on interneurons.
D)They are collectively sometimes called the extrapyramidal system.
E)They may synapse with afferent neurons in ascending pathways.

Question

Quizplus · Accepted Answer

Corticospinal fibers are sometimes called the pyramidal system, not the extrapyramidal system. The extrapyramidal system refers to a group of indirect pathways involved in motor control.

Which of the Following Is Not True of Corticospinal Fibers