Biology - The Eye

Question 0

Retina

Answer 0

Layer of light sensitive receptor cells which change the light image in to electrical impulses

Question 1

The eye

Answer 1

The Eye

Question 2

Sclera

Answer 2

Tough white outer layer of the wall of the Eye

Question 3

Fovea

Answer 3

Central region of retina, provides coloured vision

Question 4

Choroid

Answer 4

Pigmented layer of tissues that prevent reflection of light rays inside the Eye

Question 5

Blind spot

Answer 5

Region lacking receptor cells.

Where the optic nerve leaves the Eye

Question 6

Optic Nerve

Answer 6

Carries nerve impulses from the Eye to the brain

Question 7

Humour

Answer 7

Transparent watery/jelly like liquids that fill the inside of the Eye.
Helps to maintain the shape of the Eye ball.

Question 8

Ciliary body

Answer 8

Contains muscles that contract or relax to alter the shape of the lens

Question 9

Cornea

Answer 9

Transparent cover at the front of the Eye.
Allows light in.
Does most bending of light.

Question 10

Iris

Answer 10

Alters diameter of the pupil to control amount of light entering the Eye

Question 11

Pupil

Answer 11

Hole through which light rays pass through to the back of the Eye

Question 12

Lens

Answer 12

Changes shape to focus light on the retina

Question 13

Suspensory Ligaments

Answer 13

Attaches the lens to the ciliary body.

Holds lens in place