Parts of the Eye

Question 1

sclera

Answer 1

It’s an opaque, protective outer structure.
It is a soft connective tissue which helps maintain the spherical shape.

Question 2

Muscles

Answer 2

controls the movement of the eye within the eye socket

Question 3

iris

Answer 3

it is made up of muscles and its function is to help control the amount of light entering the eye.

Question 4

retina

Answer 4

it’s a photosensitive layer of cells at the back of the eye that pass impulses along the optic nerve

Question 5

lens

Answer 5

transparent, flexible, curved structure. It’s function is to focus incoming light rays onto the retina

Question 6

vitreous humor

Answer 6

it is a transparent liquid located behind the lens. Acts as a ‘suspension’ for the lens

Question 7

cornea

Answer 7

it is the transparent, curved front of the eye which converges the light rays which enter the eye

Question 8

blind spot

Answer 8

this is where the bundle of sensory fibres form the optic nerve; it contains no light

Question 9

optic nerve

Answer 9

the largest sensory nerve of the eye. It carries electrical impulses from the retina to the brain

Question 10

Pupil

Answer 10

it is a hole in the middle of the iris where light is allowed to continue its passage