B1 Understanding Ourselves

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Match parts of the eye to their function

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Pupil

Iris

Cornea

Suspensory ligaments

Ciliary muscles

Convex lens

Retina

Optic nerve

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Focuses light on to the retina

Alter the shape of the lens in focusing

Controls the amount of light entering the eye

Refracts the light rays

Carries nerve impulses to the brain

Contains light receptors- rods(black and white) and cones(colour)

Allows light rays to enter the eye

Closer to the lens compared to the suspensory ligaments


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