Face

Question 1

essay about facial nerve

Answer 1

FACIAL NERVE: It is motor nerve. It is the 7th cranial nerve. It leaves the skull through stylomastoid foramen. It enters the parotid gland where it ends by dividing into five terminal branches that supply the face muscles.

Question 2

Origin of Buccinator muscle :

Answer 2

-Alveolar margin of the maxilla opposite to the upper 3 molar teeth
-Alveolar margin of the mandible opposite to the lower 3 molar teeth
-Pterygomandibular ligament in between

Question 3

Insertion of Buccinator muscle :

Answer 3

-The upper fiber into the upper lip
-The lower fibers into lower lip

Question 4

Nerve supply of Buccinator muscle :

Answer 4

Facial nerve through its buccal branch

Question 5

Action of Buccinator muscle :

Answer 5

-prevent accumulation of food
-Blowing & whistling

Question 6

Orbicularis oris muscle consists of :

Answer 6

extrinsic & intrinsic fibers

Question 7

Nerve supply of Orbicularis oris muscle :

Answer 7

Facial nerve

Question 8

Action of Oribcularis oris muscle :

Answer 8

closes the mouth

Question 9

Branches of facial nerve :

Answer 9

Branches:
-2 branches after it emerges from the skull; Branch to supply occipital belly of
occipitofrontalis & branch to supply posterior belly of digastric.
-5 terminal branches: Temporal N, Zygomatic N, Buccal N, Marginal mandibular N, Cervical N.

Question 10

Name the 3 divisions of Trigeminal nerve

Answer 10

Ophthalmic N, Maxillary N, Mandibular N

Question 11

Motor supply of face :

Answer 11

Facial Nerve

Question 12

Sensory supply of face :

Answer 12

Trigeminal nerve
cervical nerve

Question 13

Ophthalmic nerve supplies :

Answer 13

Skin of forehead, Upper eyelid, Front of nose.

Question 14

Maxillary nerve supplies :

Answer 14

Skin of lower eyelid, Side of nose, Upper lip.

Question 15

Mandibular nerve supplies :

Answer 15

Skin of cheek, Chin, Lower lip

Question 16

Name the division of Cervical nerve :

Answer 16

Great auricular nerve

Question 17

Great auricular nerve of face supplies :

Answer 17

The area over the mandible angle

Question 18

Essay about Facial artery :

Answer 18

It is the main artery of the face. It begins in the neck as a branch of the external carotid artery. It ascends on the submandibular salivary glands, then curves around the lower border of mandible. It ends at the medial angle of eye by becoming angular artery.

Question 19

Name the branches of Facial artery :

Answer 19

Inferior labial A, Superior labial A, Nasal A, Angular A.

Question 20

Name the venous drainage of face :

Answer 20

Anterior facial vein, Retro mandibular vein.