Anatomy and Visual Pathways

Question 1

Name the 6 extraocular muscles

Answer 1

sup, inf, medial and lateral rectus
superior and inferior oblique

Question 2

Which muscles does the 3rd cranial nerve innervate

Answer 2

sup, inf, med, inferior oblique

Question 3

Which muscles does the fourth cranial nerve innervate?

Answer 3

sup oblique

Question 4

which muscles does the sixth cranial nerve innervate?

Answer 4

lateral rectus (abducts eye= abducens)

Question 5

Which part of the eye is affected in cataracts?

Answer 5

lens

Question 6

Which cells function in dim light?

Answer 6

rods

Question 7

which cells are involved in high acuity tasks?

Answer 7

cones

Question 8

Which part of the eye is associated with macular degeneration?

Answer 8

choroid

Question 9

Which is the worst eyesight you could have?

Answer 9

6/60

Question 10

State the structures involved in the visual pathway from retina to visual cortex

Answer 10

optic nerve
optic chiasm
lateral geniculate nucleus
optic radiation
visual cortex

Question 11

Where is the lacrimal gland situated?

Answer 11

superior lateral eye

Question 12

Which nerve innervates the levator palpebrae superioris muscle?

Answer 12

oculmotor CN III