A nurse recalls that characteristics of upper motor neurons include:
A) directly innervating muscles.
B) influencing and modifying spinal reflex arcs.
C) cell bodies located in the gray matter of the spinal cord.
D) dendritic processes extending out of the CNS.

Question

Quizplus · Accepted Answer

Upper motor neurons are responsible for influencing and modifying spinal reflex arcs and circuits. They do not directly innervate muscles; instead, they send signals to lower motor neurons, which then innervate muscles. Upper motor neurons have their cell bodies located in the brain, not the spinal cord, and their axons extend out of the CNS, not dendritic processes.

A Nurse Recalls That Characteristics of Upper Motor Neurons Include