Which descending tracts synapse on lower motor neurons in the motor nuclei of cranial nerves controlling eye movements, facial muscles, jaw muscles, and some muscles of the neck and pharynx?
A) lateral corticospinal
B) anterior corticospinal
C) corticobulbar
D) spinothalamic
E) posterior column

Question

Quizplus · Accepted Answer

The corticobulbar tract is responsible for synapsing on lower motor neurons in the motor nuclei of cranial nerves controlling eye movements, facial muscles, jaw muscles, and some muscles of the neck and pharynx. The lateral corticospinal tract controls voluntary movements of the limbs, the anterior corticospinal tract controls voluntary movements of the trunk and lower limbs, the spinothalamic tract is responsible for transmitting pain and temperature sensations, and the posterior column tract is responsible for transmitting fine touch, pressure, and vibration sensations.

Which Descending Tracts Synapse on Lower Motor Neurons in the Motor