NEET PG DENTAL EXAM

BRAIN

CRANIAL NERVES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which nerve does NOT play a role in swallowing?
A
Glossopharyngeal
B
Hypoglossal
C
Olfactory
D
Vagus
Explanation: 

Detailed explanation-1: -The glossopharyngeal, hypoglossal, and vagus nerves all play a role in swallowing. The glossopharyngeal nerve is the main center for swallowing, however, but all three play a role together (along with the facial, trigeminal, and spinal accessory). The olfactory nerve does NOT.

Detailed explanation-2: -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-3: -Cranial nerve XII (the glossopharyngeal nerve) carries motor information to intrinsic and extrinsic muscles of the tongue. However, cranial nerve XII does not carry any sensory information. It is therefore not involved in sensations of taste.

Detailed explanation-4: -The trigeminal nerve is the part of the nervous system responsible for sending pain, touch and temperature sensations from your face to your brain. It’s a large, three-part nerve in your head that provides sensation. One section called the mandibular nerve involves motor function to help you chew and swallow.

There is 1 question to complete.