Muscles of Orbit

Question 1

Inferior Oblique innervation

Answer 1

oculomotor nerve (CN III), inferior division

Question 2

Inferior Oblique action

Answer 2

abducts, elevates

Question 3

inferior rectus innervation

Answer 3

Oculomotor nerve (CN III)

Question 4

inferior rectus action

Answer 4

Depresses, adducts

Question 5

lateral rectus innervation

Answer 5

Abducens nerve (CN VI)

Question 6

lateral rectus action

Answer 6

Abducts eyeball

Question 7

Levator palpebrae superioris innervation

Answer 7

Oculomotor nerve (CN III), superior division

Question 8

Levator palpebrae superioris action

Answer 8

Raises upper eyelid

Question 9

Medial Rectus innervation

Answer 9

Oculomotor nerve (CN III), inferior division

Question 10

Medial Rectus action

Answer 10

Adducts eyeball

Question 11

Sphincter Pupillae innervation

Answer 11

parasympathetic fibers via oculomotor nerve (CN III)

Question 12

Sphincter Pupillae action

Answer 12

constricts pupil

Question 13

superior oblique innervation

Answer 13

Trochlear nerve (CN IV)

Question 14

superior oblique action

Answer 14

abducts, depresses, and medially rotates eyeball

Question 15

superior rectus innervation

Answer 15

Oculomotor nerve (CN III), superior division

Question 16

superior rectus action

Answer 16

elevates, adducts, and medially rotates eyeball