Topic 13: Cranial Nerves

Question 1

name eye structures innervated by CN2

Answer 1

sends impulses from retina to the brain

Question 2

name eye structures innervated by CN3

Answer 2

ciliary muscles, iris muscles (sphincter mostly), levator palpebrae superioris muscle & muller muscle, medial rectus & superior rectus & inferior rectus & inferior oblique

Question 3

name eye structures innervated by CN4

Answer 3

superior oblique

Question 4

name eye structures innervated by CN5

Answer 4

cornea, sclera, uveal tract, conjunctiva, lacrimal gland (lacrimal apparatus & tear secretion)

Question 5

name eye structures innervated by CN6

Answer 5

lateral rectus

Question 6

name eye structures innervated by CN7

Answer 6

lower lid, orbicularis oculi muscle, riolan’s muscle, frontalis muscle, tear drainage, facial muscles