The Eye Flashcards by Nicole C

Q

Conjunctiva

A

Protection

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Q

Sclera

A

Holds eye in shape

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Q

Cornea

A

Leys light into the eye.

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Q

Choroid

A

Nourishes the eye and prevents reflection of light within the eye.

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Q

Retina

A

Contains rods and cones

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Q

Fovea

A

Contains cones only

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Q

Blind spot

A

Where optic nerve leaves the eye.

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Q

Optic nerve

A

Carries impulses from eye to brain.

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Q

Lens

A

Changes shape to focus light on the retina

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Q

Ciliary muscle

A

Causes the lends to change shape.

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Q

Iris

A

Controls the amount of light entering the eye.

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Q

Pupil

A

Lets light into eye.

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Q

Aqueous humour

A

Holds the front of the eye in shape.

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Q

Vitreous humour

A

Holds the back of the eye in shape.

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Q

Rods

A

Black and white vision/dim light/all over retina.

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Q

Cones

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A

Colours/bright light/ at the fovea.

Q

Lens are

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A

Curved/transparent.

Q

Advantage of having 2 eyes

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A

Increased visual field.