Orbit 2

Question 1

How many extraocular muscles?

Answer 1

7

Question 2

Whats the origin of the Recuts mm?

Answer 2

Annular Tendineus

Question 3

V1 splits into which nerves?

Answer 3

Nasal Ciliary
Frontal
Lacrimal

Question 4

Action of Superior rectus m?

Answer 4

Superiorly and medially

Question 5

Action of Inferior rectus m?

Answer 5

Inferiorly and medially

Question 6

What two structures pass through the Annulus?

Answer 6

Optic Nerve and Ophthalmic artery

Question 7

Which structures pass over the annulus ring?

Answer 7

Ophthalmic vein
trochlear n
Frontal and lacrimal branches of ophthalmic nerve

Question 8

What’s the origin of the Superior oblique m?

Answer 8

Body of Sphenoid

Question 9

Whats the action of Superior oblique m?

Answer 9

Moves eye Inferiorly and laterally

Question 10

Whats the action of the Inferior oblique m

Answer 10

Moves eye Superiorly and laterally

Question 11

Superior Division of Oculomotor innervates all of the muscles in the orbit that have ____ in their name.

Answer 11

Superior

Question 12

Frontal nerve of V1 bifurcates into?

Answer 12

Supraorbital and Supratrochlear nn.

Question 13

Name of the artery that supplies the entire orbit?

Answer 13

Ophthalmic a

Question 14

Ophthalmic a is a branch of?

Answer 14

internal carotid artery

Question 15

Name of artery that goes into the eyeball?

Answer 15

Central retinal artery

Question 16

What nerve does RUNS with Ophthalmic a?

Answer 16

Optic n (II)

Question 17

Superior ophthalmic vein receives ____ veins from the eyeball.

Answer 17

Verticose

Question 18

Superior Ophthalmic vein drains into?

Answer 18

Cavernous sinus

Question 19

Superior ophthalmic vein anastomoses with?

Answer 19

Angular vein branch of facial vein

Question 20

Major trunk of inferior ophthalmic vein anastomoses with?

Answer 20

Superior ophthalmic vein

Question 21

Inferior Ophthalmic vein drains into?

Answer 21

Cavernous sinus

Question 22

Lesser trunk usually leaves the orbit through the inferior orbital fissure and drains to the ____ ____ ____

Answer 22

pterygoid venous plexus

Question 23

The eye is drained by the ____ ____ of the ____ which normally enters the cavernous sinus directly.

Answer 23

central vein of the retina