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27 Cards in this Set
- Front
- Back
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The vallate papillae are in what part of the tongue? (answer:root or dorsum)
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The dorsum
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What do the vallate papillae contain?
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taste buds
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What are also present around the vallate papillae?
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serous gustatory glands
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The serous gustatory glands have what purpose?
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To wash away flavors in order to renew the vallate papillae for new tastes.
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Along the sides of the tongue, toward the back, are transverse mucosal folds. What are they called?
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foliate papillae
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What do the foliate papillae contain?
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taste buds and serous gustatory glands
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What 2 papillae on the dorsum of the tongue are innervated by craial nerve 7 for taste sensation?
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fungiform papillae
and foliate papillae |
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What papillae are probably innervated by the glossopharyngeal nerve, CN IX, which innervates the posterior 1/3 of the tongue for taste?
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The vallate papillae
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Posterior to the V-shaped terminal sulcus on the tongue, we see the root of the tongue covered with a very rugged surface. What is the name for these structures on the root of the tongue?
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lingual follices
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What is the tiny white pit that can be seen at the apex of the sulcus terminalis?
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foramen cecum
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What is foramen cecum, the embryological point of origin for?
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The thyroglossal duct
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In embryonal development what gland grew out of the floor of the pharynx, in the region of the tongue, before it developed and leaves behind a foramen cecum. Its duct of origin the thyroglossal duct?
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The thyroid gland
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The 4 qualities of taste: sour, salty, bitter and sweet are detected at different sites on the tongue. Are there recognizable differences in light or electron microscopy between the taste buds?
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No. Noone has yet discovered any real differences between the different taste buds even though they are in different parts in the tongue tasting differnt qualities of taste.
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What 2 tastes are at the tip of the tongue
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salt and sweet
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What taste is over the middle of the tongue but not towards the sides of the tongue?
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sweet
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Which 2 tastes are on the sides of the tongue?
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sour and salty
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There is a gradation between the sour and salt. Which of them is stronger on the side of the tongue toward the front?
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salt
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Which is stronger on the side of the tongue toward the back? sour or salty?
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sour
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What is the taste in the region of the vallate papillae?
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bitter
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As we look at the roof of the mouth behind the front teeth we have the __________.
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hard palate
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Behind the hard palate we have __________.
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The soft palate
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Hanging down in the center from the end of the soft palate we have ____________.
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The uvula
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What are the two pilars of tissue that arch up from the sides to the uvula?
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The palatoglossal arches
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What are the recesses directly behind the palatoglossal arches on both sides?
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The tonsillar foci
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What is the mass of lymphatic tissue within the tonsillar foci?
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palatine tonsil
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Directly posterior to the tonsillar foci and the palatine tonsil is another arching pillar, one on each side, what is that?
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Palatopharyngeal arch
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Behind the palatopharyngeal arches, there is a space stopped by the posteriorwall of the pharynx. what is this space?
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The oropharynx
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