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14 Cards in this Set
- Front
- Back
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What are the three kinds of neuroepithelial cells in taste buds
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Basal cells, supporting cells and gustatory receptor cells
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Basal cells
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produce supporting cells
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Supporting cells
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differentiate into gustatory receptor cells
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Gustatory receptor cells
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have a life span of abut ten days
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NEUROEPITHELIAL CELLS
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subtype of stem cell
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How do neuroepithelial cells divide?
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Asymmetric divisions
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What is the site for gustatory transductiion
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gustatory hairs
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What kind of graded potential is produced by gustatory receptors
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receptor potentials
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State the location of the conventional receptor for sour
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back sides of tongue
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What is the sour taste due to?
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Hydrogen ions where they influence opening and closing of other types of ion channes
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When tasting salty foods, the accumulation of Na+ wthin the cell causes depolarization which in turn open what
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the Ca2+ channels, which triggers exocytosis of synaptic vesicles and liberate the neurotransmitter
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Sweet bitter and umami taste do not enter gustatory receptor cells they bind to what
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receptors on the plasma membrane that are linked to G proteins
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Impulses from taste buds propagate along the appropriate crainal nerve to the what
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gustatory nucleus in the medulla oblongata
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Do taste receptor cells have an axon
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no they do not
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