Front | Back |
Tongue
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Contains papillae with taste buds
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Papillae
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Projections of tongueContain taste budsThree types
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Taste bud
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Cluster of gustatory cells Located in papillae
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Gustatory cells
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Specialized cells sensitive to taste chemicals Come in several, five different types
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Gustatory hairs
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Binding site for taste chemicals Sweet: Sugars, alcoholsSour: AcidsSalty: Metal ions (Such as Na)Bitter: AlkaloidsUmami: Glutamate and aspartate
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Basal cells
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Stem cells for receptor cell replacement
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Salivary glands
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Produce saliva for dissolving taste molecules
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Facial nerve
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Cranial nerve, sensory for tasteCarries impulses to gustatory cortex
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Glossopharyngeal nerve
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Cranial nerve, sensory for tasteCarries impulses to gustatory cortex
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Vagus nerve
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Cranial nerve, sensory for tasteCarries impulses to gustatory cortex
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