NEET PG DENTAL EXAM

Detailed explanation-1: -The glossopharyngeal nerve is the ninth set of 12 cranial nerves (CN IX). It provides motor, parasympathetic and sensory information to your mouth and throat. Among its many functions, the nerve helps raise part of your throat, enabling swallowing.

Detailed explanation-2: -Glossopharyngeal Nerve (IX) The glossopharyngeal nerve provides sensory supply to the palate. It can be tested with the gag reflex by touching the pharynx with a tongue depressor or by touching the arches of the pharynx.

Detailed explanation-3: -The lower cranial nerves innervate the pharynx and larynx by the glossopharyngeal (CN IX) and vagus (CN X) (mixed) nerves, and provide motor innervation of the muscles of the neck by the accessory nerve (CN XI) and the tongue by the hypoglossal nerve (CN XII).

Detailed explanation-4: -CN 9 is mainly sensory supplying the mucous membranes of the soft palate and pharynx; it serves as the afferent limb of the gag reflex. In addition to supplying thoracic and abdominal viscera the CN 10 innervates the muscles of the pharynx, palate and vocal cords and so controls phonation and swallowing.