Which of the following statements concerning the descending pathways of the spinal cord is true?
A) Most descending pathways control sensory functions.
B) Many of the descending pathways decussate in the midbrain.
C) Descending pathways consist of upper and lower motor neurons.
D) Descending pathways must synapse in the thalamus.
E) These pathways start in the spinal cord and end in the brain.

Question

Quizplus · Accepted Answer

Descending pathways consist of upper and lower motor neurons, which are crucial for the initiation and modulation of voluntary movement. Upper motor neurons originate in the brain and connect to lower motor neurons in the spinal cord or brainstem, which then directly innervate muscles.

Which of the Following Statements Concerning the Descending Pathways of the Spinal