Eye Anatomy

Question 1

Cornea

Answer 1

Controls and focuses the entry of light into the eye

Question 2

Pupil

Answer 2

Opening that allows light in

Question 3

Iris

Answer 3

Increase/decrease pupil size to control light levels

Question 4

Sclera

Answer 4

Protective outer coat,

Muscles attach to it

Question 5

Upper/Lower Eyelids

Answer 5

Protect eye and decrease visual stimuli when sleeping

Question 6

Lens

Answer 6

Change focal distance of the eye to allow to be able to focus on objects at various distances

Question 7

Ciliary Body

Answer 7

Wraps around and controls lens thickness

Question 8

Suspensory Ligament

Answer 8

Makes lens more or less curved

Question 9

Vitreous Body

Answer 9

Liquid that fills the eyeball,

Maintain shape of the eyeball

Question 10

Choroid

Answer 10

Houses arteries and blood vessels that nourish the back of the eye

Question 11

Retina

Answer 11

Receives light focused from the lens,
Convert light to neural signals,
Send signals to brain

Question 12

Macula Lutea

Answer 12

Responsible for sharp, detail central vision,

High concentration of cones

Question 13

Fovea Centralis

Answer 13

Highest concentration of cones in the macula lutea,

Most focused part of retina

Question 14

Optic Disc

Answer 14

Point of exit for ganglion cell axons (optic nerve) leaving the eye,
Creates blind spot because no rods or cones

Question 15

Optic Nerve

Answer 15

Transfer visual information from retina to the brain

Question 16

Lacrimal Gland

Answer 16

Produces tears

Question 17

Nasolacrimal Duct

Answer 17

Carries tears from lacrimal sac to nasal cavity