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10 Cards in this Set
- Front
- Back
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cones
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retinal cells that respond to higher levels of illumination and result in color perception; tend to be densely packed in the fovea
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cornea
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the clear outer covering of the eye
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eardrum
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a thin membrane, which sound wave vibrate, that marks the beginning of the middle ear
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iris
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the colored muscular circle on the surface of the eye; it changes shape to let in more or less light
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perception
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the processing, organization, and interpretation of sensory signal; it results in an internal representation of the stimulus
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pupil
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the small opening in the eye; it lets in light waves
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retina
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the thin inner surface of the back of the eyeball. the retina contains the photoreceptors that transduce light into neural signals
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rods
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retinal cells that respond to low levels of illumination and result in black-and-white perception
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sensation
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the sense organs' responses to external stimuli and the transmission of these responses to the brain
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transduction
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a process by which sensory receptors produce neural impulses when they receive physical or chemical stimulation
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