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9 Cards in this Set
- Front
- Back
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Red: iodopsin 1 Green: iodopsin 2 Blue: iodopsin 3 |
What are the three types of cones? |
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Rod |
What is an elongated cater segment filled w/ membranous discs that contain the pigment rhodopsin? |
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Cones |
Tapered (conical) outer segment W/ membranous folds that contain the pigment idopsin |
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Fovea |
What is the spot on the retina with highest concentration of photo receptors. It contains only rods and cones and is the point of SHARPEST VISION (within macula) |
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Optic disc |
A spot on the retina where all ganglion cell axons exit via the optic nerve. It has no photo receptor. Causes a blind spot in the visual field. |
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Lens fibers |
____ _____ are specialized cells that make up the lens |
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Crystallins |
______ are small proteins in lens fibers, they help with accommodation (focusing) |
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Refraction |
________ is a change in the direction of a photon of light as it passes from 1 medium to another |
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Cornea Aqueous humor Lens Vitreous body |
What are the FOUR refractive media of the eye? |
