a mobile mass of muscular tissue covered with mucous membrane and located in the oral cavity
small rough elevations on tongue and roof of mouth; contain taste buds
sense receptors in the tongue that respond to sweet, salty, sour, bitter, umami, and perhaps fat
opening in the surface end of taste bud where cilia is extended into from receptor cells to contact tastants (substances that can be tasted)
the sensory receptor cells for gustation located in the taste buds
tiny projections protruding from the outer ends of the taste cells extending from the taste pore. very sensitive
undifferentiated immature cells that undergo continuous regeneration
Insulate gustatory cells from each other and surrounding epithelium
parts of tongue
Dorsum, blade & tongue tip
5 taste sensations
sweet receptors, sour receptors, salt receptors, bitter receptors, umami
Innervation of taste buds
~facial nerve (VII) - anterior 2/3's of tongue
~glossopharyngeal nerve (IX) - posterior 1/3
~vagus nerve (X) - palate, pharynx, epiglottis
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