facial nerve

Question 1

what CN leave via the cerebropontine angle

Answer 1

6, 7, 8

Question 2

components of CN 7

Answer 2

motor

intermediate

Question 3

where does CN 7 exit

Answer 3

internal acousitic meatus with 8

Question 4

branches of facial nerve

Answer 4

main branch
chorda tympani
greater petrosal

Question 5

main branch of facial nerve exits via

Answer 5

styloid mastoid foramen

Question 6

function of main branch of facial nerve

Answer 6

general sensory to auricle

branchial motor

Question 7

chorda tympani nerve exits via

Answer 7

middle ear cavity

Question 8

function of chorda tympani

Answer 8

taste to anterior 2/3 of tongue

visceral motor to 2/3 salivary glands

Question 9

exit of greater petrosal nerve

Answer 9

petrous portion of temporal bone

Question 10

function of greater petrosal nerve

Answer 10

visceral motor to lacrimal, nasal, and alatine glands

visceral sensory to small part of soft palate

Question 11

geniculum of facial nerve

Answer 11

descent of facial nerve after leaving geniculate ganglion

Question 12

geniculate ganlgion

Answer 12

sensory ganglion for facial nerve

Question 13

proprioception of facial nerve goes to

Answer 13

mesocephalic nucleus of V

Question 14

pain and temperature of facial nerve go to

Answer 14

spinal nucleus of V

Question 15

fine touch of facial nerve goes to

Answer 15

peripheral sensory nucleus of V

Question 16

exit of chord tympani nerve

Answer 16

petrotympanic fissure

Question 17

where does the chorda tympani nerve join the lingual nerve and why does it do this

Answer 17

at the infra temporal fossa
so presynpatic parasympathetic fibers can get to the sensory ganglion of VII (geniculate ganglion) to get back to the solitary nucleus in the brain

Question 18

where does signal to salivate originate

Answer 18

supeiror salvitory nucleus

Question 19

submandibular ganglion

Answer 19

where parasympathetic synapse to get to the salivary glands

Question 20

where does the greater petrosal nerve exit

Answer 20

middle cranial fossa via foramen for greater petrosal nerve

Question 21

pterygoid ganglion

Answer 21

where greater petrosal nerve synapses and post para go to glands via V branches

Question 22

pterygopalatine ganglion

Answer 22

synapse site for emotional tearing- to get to lacrimal gland