MRCP UK EXAMINATIONS

Detailed explanation-1: -The facial nerve controls the muscles that help you smile, frown, wrinkle your nose, and raise your eyebrows and forehead. This seventh cranial nerve performs motor and sensory functions.

Detailed explanation-2: -Most of the 43 muscles we use to smile are under the control of the seventh cranial nerve. This is also referred to as the facial nerve.

Detailed explanation-3: -The trigeminal nerve is responsible for sensory enervation of the face and motor enervation to muscles of mastication (chewing). The abducent nerve enervates a muscle, which moves the eyeball. The facial nerve enervates the muscles of the face (facial expression).

Detailed explanation-4: -The facial nerve provides motor innervation of facial muscles that are responsible for facial expression, parasympathetic innervation of the glands of the oral cavity and the lacrimal gland, and sensory innervation of the anterior two-thirds of the tongue.