Eye and Orbit

Question 0

what are the 3 apertures on the anterior wall?

Answer 0

bony rim of orbit
fossa of lacrimal sac and duct
superior orbital foramen (supraorbital n., supraorbital a. and v.)

Question 1

what are the 3 apertures on the posterior wall of orbit?

Answer 1

optic canal (optic n., ophthalmic a.)
superior orbital fissure (CNs 3, 4, 5, 6, superior ophthalmic v.)
inferior orbital fissure (infraorbital n., infraorbital a. and v.)

Question 2

what are the 3 apertures of the side walls?

Answer 2

ant. ethmoidal foramen
-ant ethmoidal n, a, v
post. ethmoidal foramen
-post ethmoidal n. a. v.
infraorbital groove
-infraorbital n. a. v.

Question 3

what are the 3 muscles that move the eyelids?

Answer 3

obicularis oculi (skeletal)
levator palpebrae superioris (skeletal)
superior tarsal muscle (of Muller) (smooth muscle)