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19 Cards in this Set
- Front
- Back
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What are retronasal olfactory sensations?
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sort of smelling through the mouth instead of the nose
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What are papillae?
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Filiform, fungiform, foliate, circumvallate
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What are the basic tastes?
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salty, sour, bitter, sweet, umami
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What inhibits bitterness?
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AMP
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What is the chorda tympani nerve?
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branch of cranial nerve VII that carries taste information from the anterior, mobile tongue
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What are filiform papillae?
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small structures on the tongue that provide most of the bumpy appearance;no taste function
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What are fungiform papillae?
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mushroom-shaped structures that are distrubuted mainly on the edges of the tongue
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What are foliate papillae?
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folds of tissue containing taste buds;rear of tongue
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What are circumvallate papillae?
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circular structures that form an inverted V on the rear of the tongue
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What is the insular cortex?
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part of cortex that first receives taste information
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What is the orbitofrontal cortex?
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receives info from the insular cortex
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How are neutransmitters sent for taste?
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Thalamus, gustatory cortex and orbitofrontal cortex
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What are labeled lines?
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theory of taste coding in which each taste nerve fiber carries a particular taste quality
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What is pattern coding?
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the pattern of response across the set of receptors gives percept
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What are nontasters?
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an individual born without receptors for the bitter componeet 6-n-propylthiouracil
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What are tasters?
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individual born with receptors for the bitter compound PROP (high density of fungiform)
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What is the specific hungry theory?
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idea the need for a nutrient will cause the body to crave it
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What is retronalsal olfaction?
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comes through the mouth, enters the nasal cavity through the back
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What is orthonasal olfaction?
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comes through the nostrils, enters the nasal cavity through the front
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