- Parts of the Eye (Functions)

Question 1

Lens

Answer 1

Changes shape to focus light onto retina

Question 2

Iris

Answer 2

Controls the amount of light entering the eye

Question 3

Suspensory Ligaments

Answer 3

Hold lens in place

Question 4

Ciliary Muscle

Answer 4

Changes thickness of lens when focusing

Question 5

Optic Nerve

Answer 5

Carries nerve impulses to the brain

Question 6

Sclera

Answer 6

Tough, white, protective layer

Question 7

Choroid

Answer 7

Black layer containing lots of blood vessels

Question 8

Retina

Answer 8

Inner light-sensitive layer with rod and cone cells

Question 9

Aqueous Humour

Answer 9

Watery liquid at the front of the eye that nourishes the lens and maintains pressure

Question 10

Vitreous Humour

Answer 10

Transparent, gelatinous mass which maintains the round shape of the eye, supports the retina and nourishes the lens

Question 11

Cornea

Answer 11

Transparent area where light enters

Question 12

Conjunctiva

Answer 12

Delicate, transparent layer in front of cornea

Question 13

Pupil

Answer 13

A hole in the centre of the iris which allows light to pass through

Question 14

Blind spot

Answer 14

Where optic nerve and blood vessels leave the eyeball