While taking a history, the nurse observes that the patient's facial cranial nerves (CN VII) are intact based on which behaviors of the patient?
A) The patient's eyes move to the left, right, up, down, and obliquely during conversation.
B) The patient moistens the lips with the tongue.
C) The sides of the mouth are symmetric when the patient smiles.
D) The patient's eyelids blink periodically.

Question

Quizplus · Accepted Answer

Option C represents facial symmetry, which is controlled by the facial cranial nerve (CN VII). Option A represents movement of the extraocular muscles, which are controlled by the oculomotor, trochlear, and abducens cranial nerves (CN III, IV, and VI, respectively). Option B represents movement of the tongue, which is controlled by the hypoglossal cranial nerve (CN XII). Option D represents function of the oculomotor cranial nerve (CN III).

While Taking a History, the Nurse Observes That the Patient's