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17 Cards in this Set
- Front
- Back
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Cones
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Color vision, need lots of light
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Rods
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Black and white, low light
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What is transduction?
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The conversion of energy into electrochemical nerve impulses
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Sensory cells are not...
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neurons
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What are the sensory cells for vision?
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Photoreceptors in the retina
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What are the sensory cells for hearing?
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Hair cells found in the cochlea
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What are the sensory cells for touch?
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Corpuscles, Merkel's disks and free nerve endings
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What are the sensory cells for gustation (taste)?
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Chemoreceptors found in taste buds
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What are the sensory cells for olfaction (smell)?
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Chemoreceptors found on nerve endings descending from brain's olfactory bulb, ending up on olfactory mucosa of the sinuses
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Sclera
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white outer wall of the eye
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Vitreous Humor
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eye's internal fluid which, along with the sclera, maintain shape
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Cornea
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Clear surface, covers front of eye
-first and most powerful lens |
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Iris
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colored part of eye
-contracts and expands to adjust pupil opening |
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Pupil
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'black' hole that light passes through
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Lens
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behind cornea, keeps images focuses on retina
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Ciliary muscles
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relax-distance vision
contract-near vision |
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Retina
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Back of eye
-converts light into electrochemical nerve impulses |
