specaial senses eye

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12 Terms

1
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What protects the eye?

Eyelids and lashes.

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What makes tears?

Lacrimal gland.

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Where do tears drain?

Into nose through duct.

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What is the cornea?

Clear front layer.

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What is the iris?

Colored part; controls pupil.

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What is the retina?

Back layer that senses light.

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What is the lens?

Focuses light.

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What are rods?

See in dim light.

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What are cones?

See color.

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What is the fovea centralis?

Sharpest vision spot.

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What is the optic disc?

Blind spot.

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What does the optic nerve do?

Sends signals to brain.