NEET PG DENTAL EXAM

BRAIN

CRANIAL NERVES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which cranial nerve controls facial expression?
A
olfactory
B
optic
C
facial
D
abducens
Explanation: 

Detailed explanation-1: -Sensation on the face is innervated by the trigeminal nerves (V) as are the muscles of mastication, but the muscles of facial expression are innervated mainly by the facial nerve (VII) as is the sensation of taste.

Detailed explanation-2: -The facial nerve is a pathway from your brain to certain muscles in your face. It controls muscles that help you make expressions like raising an eyebrow, smiling or frowning. This nerve is also responsible for most of your tongue’s taste sensations.

Detailed explanation-3: -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.

Detailed explanation-4: -The facial nerve, also known as the seventh cranial nerve, cranial nerve VII, or simply CN VII, is a cranial nerve that emerges from the pons of the brainstem, controls the muscles of facial expression, and functions in the conveyance of taste sensations from the anterior two-thirds of the tongue.

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