Chapter 14: Coordination and Response: II Animal Receptor Organs
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What is the role of cornea?
Role of cornea is to "refract light" inside the eye.
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What is the role of iris?
Role of iris is to "control the amount of light entering" by contracting and dilating pupil.
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What is the role of pupil?
Role of cornea is to "allow entrance of light".
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What is the role of lens?
Role of lens is to "focus image on retina".
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What is the role of fovea?
Role of fovea is to "provide clear images".
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What is the role role of ciliary muscles?
Role of ciliary muscles is to "alter the thickness of muscles".
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What is the role of choroid coat?
Role of choroid coat is to"prevent internal reflection of light.
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What are photoreceptors; rods and cons?
They are found in "retina". Rods are used in "monochromatic night vision", while cons are used in "bright light vision".
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How is entrance of light controlled?
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What is meant by term accommodation?
It is the "adjustment of lens" of the eye so that "clear images of objects at different distances" are formed on retina.
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How does your eye focus on distant object?
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How does your eye focus on nearer object?
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