The Eye - Answer Sheet

Aqueous Humor: Clear, watery fluid found in the anterior chamber of the eye.

Cones: Photoreceptors responsive to color and in bright conditions.

Cornea: Transparent tissue covering the front of the eye. Does not have any blood vessels; does have nerves.

Iris: Circular band of muscles that controls the size of the pupil. The pigmentation of the iris gives "color" to the eye.

Lens: Transparent tissue that bends light passing through the eye. To focus light, the lens can change shape by bending.

Pupil: Hole in the center of the pupil where light passes through.

Retina: Layer of tissue on the back portion of the eye that contains cells responsive to light (photoreceptors).

Rods: Photoreceptors responsive in low light conditions.

Vitreous Humor: Clear, jelly-like fluid found in the back portion of the eye. Maintains shape of the eye.

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