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25 Cards in this Set
- Front
- Back
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a cell specialized for detecting some type of information
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Receptor
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3 types of receptors
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1. Chemical
2. Visual 3. Mechanical |
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Sweet, Sour, Salt, Bitter, Umami
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Taste Receptors
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a taste of glutamic acid, a natural amino acid associated with protein rich foods
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umami
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a seasoning that gives the same umami taste. it has no smell or texture. enhances original flavor of food
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Monosodium glutamate (MSG)
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not an inherent property of the stimulus but are present exclusively in the nervous system itself
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Sensations
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sense of smell
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olfactory receptors
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our sense of taste and smell are controlled by ?
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chemical receptors
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type of eyes found in arthropods (insects). each consists of olmatilda. very sensitive to movements
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Compound eyes
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found in vertebrates. consists of a single lens that focuses a single image on an array of receptor cells. records only a small part of the total image
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camera type eyes
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white outer tough layer, surrounds entire eyeball for protection
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sclera
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transparent part of the sclera. allows light to pass through
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cornea
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contains blood vessels to supply eye cells with oxygen and nutrients
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choroid
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opening or aperture of the eye. the size of the aperture is regulated by the iris
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pupil
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pigmented part of the eye that gives people their eye color. composed of smooth muscle and controlled by reflex
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iris
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adjusts the focus for far and near objects and forms a single image on the inside back of the eye. consists of living cells
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lens
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control the thickness of the lends to alter its focus
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ciliary muscles
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thin lens is for ___ focusing
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normal, distance
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rounder, thicker lens is for ____ focusing
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near
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process of the lens becoming rounder is called
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accomodation
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image is projected upside down on the ____.
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retina
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transparent gel that fills the eyeball. inside the eye
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vitreous humor
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light image is focused on the ___. contains photosensitive receptor cells
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retina
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receptors are located ____ the sensory neurons
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behind
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only about ___% of the light that enters the eye actually gets through to hit the receptors
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10
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