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7 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Iris
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The colored portion of the eyeball
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Where
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Where is the iris found?
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Between the cornea and ciliary body
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What does the iris consist of?
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Melanocytes and circular/ radial smooth muscle
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What determines eye color?
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The amount of melanin
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What causes "Red Eye" in photography?
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The bright light that is directed into pupil that is then reflected because of the blood vessels
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What happens when bright light stimulates the eye?
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Parasympathetic fibers in from the Oculomotor (3) stimulate the sphincter papillae muscle causing a decrease in the size of the pupil
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What happens when the light is dim?
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Sympathetic neurons stimulate dilator pupillae muscle causing an increase in pupil size
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