Bell's palsy is a sudden, usually temporary loss of muscle tone on one side of the face due to damage of the facial nerve. What neurons are likely affected in this disorder?
A) lower motor neurons in the brain stem
B) lower motor neurons in the spinal cord
C) sensory neurons in the thalamus
D) neurons in the basal nuclei

Question

Quizplus · Accepted Answer

Bell's palsy is caused by damage to the facial nerve, which is a cranial nerve that originates in the brain stem and controls the muscles of the face. Therefore, the lower motor neurons in the brain stem are likely affected in this disorder.

Bell's Palsy Is a Sudden, Usually Temporary Loss of Muscle