NEET PG DENTAL EXAM

BRAIN

CRANIAL NERVES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The facial nerve muscles are made of:
A
Sensory fibers
B
Motor fibers
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -The facial nerve carries both motor and sensory fibers. Motor axons innervate the muscles of facial expression and the stapedius muscle. Parasympathetic fibers go to the ganglia that supply glands in the oral cavity and the lacrimal gland.

Detailed explanation-2: -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-3: -The motor part of the facial nerve arises from the facial nerve nucleus in the pons, while the sensory and parasympathetic parts of the facial nerve arise from the intermediate nerve.

Detailed explanation-4: -The facial nerve is the 7th cranial nerve and carries nerve fibers that control facial movement and expression. The facial nerve also carries nerves that are involved in taste to the anterior 2/3 of the tongue and producing tears (lacrimal gland).

There is 1 question to complete.