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Eye See you!. You need your comp. bk. **Write down the term and the definition as you see it written here. DO NOT shorten up the definition. This will be checked for a grade. Thank you in advance for following directions . Retina.
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You need your comp. bk. **Write down the term and the definition as you see it written here. DO NOT shorten up the definition. This will be checked for a grade. Thank you in advance for following directions
Retina • contains photosensitive elements (called rods and cones); acts as a screen where the image is INVERTED (upside down)
Sclera • a tough white tissue around the outside of the eye-ball.This is the "white of the eye".
Aqueous humor • jelly-like substance located in the front of the eye.
Optic nerve • A bundle of one million fibers that transmit information from the rod and cone cells of the retina to the brain.
Cornea • Refracts (or bends) the light; clear structure at the front of the eye.
Pupil • Tiny opening in the middle of the eye that leads to the retina. It is “clear” but appears to be “black.”
Lens • Made up of tissue layers and is used for focusing the image onto the retina.
Vitreous Humor • Jelly like substance located in the mid-part of eye • Has protein to nourish the eye • Gives the eye its shape
Choroid coat (“choroids”) • Located behind the retina • Absorbs unused radiation
Iris • The color part of the eye that can contract or expand depending on how much light is entering the eye.
Ciliary Muscles aka ciliary body • a ring-shaped muscle attached to the iris • It contracts and relaxes which changes the shape of the lens.
Suspensory Ligaments • Connects the ciliary muscle to the lens