FACIAL NERVE

Question 1

Where is the facial nerve derived?

Answer 1

2nd pharyngeal arch

Question 2

Structures supplied by motor branch

Answer 2

Muscles of facial expression
Posterior belly of digastric
Stylohyoid muscle
Stapedius

Question 3

Structures supplied by special sensory

Answer 3

Provides taste sensation to the anterior 2/3 of the tongue

Question 4

Structures supplied by parasympathetic branch

Answer 4

Submandibular and sublingual salivary gland
Nasal, palantine and pharyngeal mucous gland
Lacrimal gland

Question 5

Nerve arising from the small sensory root

Answer 5

Intermediate nerve

Question 6

Point where facial nerve emerges in the brainstem

Answer 6

Pontomedullary junction

Question 7

Collection of nerve fibres of facial nerve

Answer 7

Geniculate ganglion

Question 8

During the intracaranial course, which branches does the nerve give rise to

Answer 8

Greater petrosal nerve(Supplies the glands)
Nerve to stapedius
Chorda tympani(Ant 2/3 of tongue)

Question 9

The two roots exit the skull via

Answer 9

Internal acoustic meatus

Question 10

The facial nerve exits the facial canal via

Answer 10

Stylomastoid foramen

Question 11

During the extra cranial course which branches does the nerve give rise to

Answer 11

Posterior auricular(muscles behind the ear)
Nerve to digastric
Nerve to stylohyoid