Which of these movements or muscle groups is not controlled by motor information transmitted by the corticobulbar tracts?
A) cranial, facial, pharyngeal, and laryngeal muscles
B) eye movements
C) muscles of the upper leg
D) some superficial muscles of the back and neck
E) intrinsic and extrinsic tongue muscles

Question

Quizplus · Accepted Answer

The corticobulbar tracts are responsible for controlling the muscles involved in voluntary facial, pharyngeal, and laryngeal movements, as well as some muscles of the back, neck, and tongue. However, they do not control the muscles of the upper leg, which are instead controlled by the corticospinal tracts. Therefore, choice C is the correct answer.

Which of These Movements or Muscle Groups Is Not Controlled