innervation of the Oral Cavity

Question 1

sensory innervation of the mucosa is derived from what nerves?

Answer 1

V2 and V3 of the trigeminal nerve

Question 2

what innervates the mucosa of the cheek, mucosal lining of the palate (undersurface), and the tongue

Answer 2

trigeminal nerve; branch of V3 innervates the cheeks and the tongue and branch of V2 innervates the undersurface of the tongue

Question 3

Motor nerves that regulate movement of the lips?

Answer 3

facial nerve, CN VII

Question 4

Motor nerves that regulate opening and closing of the mouth

Answer 4

branch of V3 from the Trigeminal nerve

Question 5

Motor nerve input to the muscles of the tongue

Answer 5

hypoglossal nerve

Question 6

what is the mucosal lining of the oral cavity innervated by?

Answer 6

CN 5 (trigeminal nerve)

Question 7

what are the sensory innervations of the tongue (general sensation)? taste

Answer 7

CN V, IX (V3); CN VII, IX, X

Question 8

innervation for the general somatic sensation for two thirds of the tongue is? root of the tongue (poster one third)?

Answer 8

trigeminal nerve; glossopharyngeal nerve

Question 9

Motor innervation to the tongue is provided through the ______ nerve?

Answer 9

hypoglossal nerve

Question 10

The lips are moved by?

Answer 10

facial nerve (CNVII)

Question 11

what nerve closes the mouth?

Answer 11

CN V

Question 12

which branches of the trigeminal nerve are sensory in function? the chin is innervated by which branch?

Answer 12

V1 (skin of the forehead, the eyes, cornea, tip of the nose) and V2 (under the eyes and above the lip)

V3

Question 13

what is unique about V3?

Answer 13

motor component that innervates the muscles that close the jaw and also carries general somatic innervation toward feelings of pain when you burn the inside of your mouth due to hot cheese from pizza

Question 14

nerves that provide special sensory sensation are the _____ nerves?

Answer 14

anterior 2/3 of tongue innervated by branch of the facial nerve, posterior 1/3 of tongue by the glossopharyngeal nerve

Question 15

which nerve is responsible for moving the tongue?

Answer 15

CN XII

Question 16

this branch of the trigeminal nerve provides sensory innervation to the teeth of the upper jaw?

Answer 16

V2

Question 17

this branch of the trigeminal nerve supplies the teeth of the lower jaw and closes the mouth along with muscles of mastication?

Answer 17

V3

Question 18

this branch of the trigeminal nerve also supplies general sensory innervation to the anterior 2/3 of the tongue?

Answer 18

V3

Question 19

this nerve provides general sensory sensation to the inside surface of the cheeks.

Answer 19

V3

Question 20

what do the nerve fibers in the tongue convey?

Answer 20

Somatic motor
Somatic (general) sensory
Special sensory

Question 21

what is the somatic motor nerve fiber from the tongue?

Answer 21

CN XII (hypoglossal nerve; one muscle, the palatoglossal muscle, is innervated by CN X)

Question 22

what is the somatic general sensory nerve fiber from the tongue?

Answer 22

CN 5 V3 to anterior (2/3) tongue; CN IX to posterior (1/3) tongue

Question 23

what is the special sensory nerve from the tongue?

Answer 23

CN VII (by way of the chorda tympani to anterior 2/3); CN IX to posterior 1/3; CN X

Question 24

The involuntary movement of the pharynx and esophagus is controlled by what nerve?

Answer 24

vagus nerve