NEET PG DENTAL EXAM

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BRAIN

CRANIAL NERVES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What nerve conducts sensory impulses from the skin of the face and mucosa of the nose and mouth and contains motor fibers that activate chewing muscles? *largest of all the cranial nerves and responsible for moving facial muscles by chewing and facial sensations. Try to remember Trident gum for chewing
A
Vagus
B
Trochlear
C
Trigeminal
D
Abducens
Explanation: 

Detailed explanation-1: -Sensory. The sensory portion of the trigeminal supplies touch–pain–temperature to the face. The nerve has three divisions: the ophthalmic, maxillary, and mandibular nerves (Figure 61.1).

Detailed explanation-2: -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-3: -Your olfactory nerve is the first cranial nerve (CN I). This nerve enables your olfactory system and sense of smell. Cranial nerve 1 is the shortest sensory nerve. It starts in your brain and ends in the upper, inside part of your nose.

Detailed explanation-4: -Trigeminal nerve: Sensations in your face and cheeks, taste and jaw movements. Abducens nerve: Ability to move your eyes. Facial nerve: Facial expressions and sense of taste. Auditory/vestibular nerve: Sense of hearing and balance.

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