What is a characteristic of upper motor neurons?
A)They directly influence the muscles.
B)They influence and modify spinal reflex arcs.
C)Their cell bodies are located in the gray matter of the spinal cord.
D)They extend their dendritic processes out of the central nervous system (CNS).

Question

Quizplus · Accepted Answer

Upper motor neurons (i.e., corticospinal tract) are the classification of motor pathways completely contained within the CNS. Their primary roles include directing, influencing, and modifying reflex arcs, lower-level control centers, and motor (and some sensory) neurons. The remaining options do not accurately describe the characteristic function of upper motor neurons.

What Is a Characteristic of Upper Motor Neurons