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11.45: How the Eye Works

Difficulty Level: At Grade Created by: CK-12
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Vocabulary

cone

Cone-shaped cell in the retina of the eye that detects light of different colors.

cornea

Clear, protective covering on the outside of the eye.

lens

Clear, curved structure that helps focus light on the retina at the back of the eye.

optic nerve

Nerve which carries impulses from the eye to the brain.

pupil

Black opening in the eye that lets light enter the eye.

retina

Part of the eye that contains light receptor cells.

rod

Rodlike cell in the retina of the eye that is sensitive to dim light.

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Description
Difficulty Level:
At Grade
Grades:
7 , 8
Date Created:
Nov 29, 2012
Last Modified:
Aug 30, 2016
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