A brain injury to a patient results in facial paralysis. Which descending tract is most likely affected?
A) corticospinal tract
B) tectospinal tract
C) rubrospinal tract
D) corticobulbar tract
E) reticulospinal tract

Question

Quizplus · Accepted Answer

The corticobulbar tract is responsible for innervating the muscles of the face, jaw, and tongue. A brain injury affecting this tract can result in facial paralysis. The other tracts listed are involved in other motor functions, such as voluntary movement (corticospinal tract), reflexes (tectospinal tract), motor coordination (rubrospinal tract), and autonomic functions (reticulospinal tract).

A Brain Injury to a Patient Results in Facial Paralysis