Orbit Flashcards
1
Q
What is the main arterial supply of the orbit?
A
Ophthalmic artery, lacrimal and central retinal.
2
Q
What is the main venous drainage of the orbit?
A
Superior and inferior opthalmic veins -> cavernous sinus.
3
Q
Which muscles attach to the common tendinous ring?
A
Superior, inferior, lateral and medial rectus muscles.
4
Q
Which muscle does the frontal nerve sit on top of?
A
Levator palpebrae superioris.
5
Q
What does the frontal nerve split into?
A
Supraorbital and supratrochlear nerves.
6
Q
Largest branch off the ophthalmic ?
A
Frontal nerve.
7
Q
What innervates superior oblique?
A
Trochlear.
8
Q
What innervates lateral rectus?
A
abducens.
