Orbit/Ear Stuff

Question 1

function of anterior chamber

Answer 1

Contains aqueous humor-light passes through chamber through pupil

Question 2

function of posterior chamber

Answer 2

Contains vitreous humor to structurally support retina while transmitting light

Question 3

what is the lacrimal gland’s blood and nerve source

Answer 3

Blood: Supraorbital artery (branch to lacrimal)

Innervation: Lacrimal nerve from CN V1 (general sensory), CN VII (parasympathetic)

Question 4

where does tympanic membrane and auditory tube receive blood supply from

Answer 4

maxillary artery

Question 5

what is tympanic membrane innervated by

Answer 5

CN VIII

Question 6

what is auditory tube innervated by

Answer 6

CNV2, CNVIII

Question 7

what does front nerve come off of and innervate

Answer 7

CN VI- innervates sensory of orbit and skin of forehead (comes out of orbit)

Question 8

what is geniculate ganglion

Answer 8

CN VII sensory fibers- cell bodies for taste anterior 2/3 of tongue and is junction point for greater petrosal nerve branches

Question 9

what does greater petrosal nerve do

Answer 9

parasympathetic from CNVII, innervates glands of orbit tnad nose

Question 10

what does lesser petrosal nerve do

Answer 10

innervated by CN IX (motor-parasympathetic) innervates parotid gland