Powerpoint for Panopto self study recordings 3

Question 1

function of the nasociliry nerve

Answer 1

small branch of the opthalmic division. Goes medially and its branches supply medial part of the orbit, ethmoidal air sinus, nasal cavity

Question 2

function of the lacrimal branch

Answer 2

smallest branch of the ophthalmic division, travels laterally and supplies lateral part of orbit and lacrimal gland

Question 3

function of the frontal branch

Answer 3

Largest branch of Ophthalmic division. Divides into supraorbital and supratrochlear branches

Question 4

function of the maxillary division?

Answer 4

passes through the inferior orbital canal in the floor of the orbit, and exits through the infraorbital foramen as the infraorbital nerve

Question 5

what is the opthalmic artery and what does it supply?

Answer 5

The Ophthalmic artery is a large branch of the Internal Carotid artery. It supplies all structures in the orbit, and also some branches to the nasal cavity and forehead.

Question 6

what is the central retinal artery?

Answer 6

travels within the substance of the optic nerve, supplies inner layers of the retina

Question 7

what are the short posterior ciliary arteries?

Answer 7

supplies the posterior part of the choroid

Question 8

what is the long posterior ciliary arteries?

Answer 8

supply anterior choroid, ciliary body and iris

Question 9

what is the central retinal artery and vein a branch of?

Answer 9

branch of ophthalmic a

Question 10

what is the optic disc?

Answer 10

start of the optic nerve, physiological blind spot

Question 11

where does the sup and inf ophthalmic veins drain into?

Answer 11

cavernous sinus

Question 12

where is the cavernous sinus situated?

Answer 12

immediately posterior to the apex of the orbit