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Eye See you! - PowerPoint PPT Presentation


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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
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
Retina
  • contains photosensitive elements (called rods and cones); acts as a screen where the image is INVERTED (upside down)
sclera
Sclera
  • a tough white tissue around the outside of the eye-ball.This is the "white of the eye".
aqueous humor
Aqueous humor
  • jelly-like substance located in the front of the eye.
optic nerve
Optic nerve
  • A bundle of one million fibers that transmit information from the rod and cone cells of the retina to the brain.
cornea
Cornea
  • Refracts (or bends) the light; clear structure at the front of the eye.
pupil
Pupil
  • Tiny opening in the middle of the eye that leads to the retina. It is “clear” but appears to be “black.”
slide9
Lens
  • Made up of tissue layers and is used for focusing the image onto the retina.
vitreous humor
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
Choroid coat (“choroids”)
  • Located behind the retina
  • Absorbs unused radiation
slide12
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
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
Suspensory Ligaments
  • Connects the ciliary muscle to the lens