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Lingual papillae (sg.: papilla, from Latin lingua ' tongue ' and papilla ' nipple, teat ') are small structures on the upper surface of the tongue that give it its characteristic rough texture. The four types of papillae on the human tongue have different structures and are accordingly classified as circumvallate (or vallate), fungiform ...
The taste buds on the tongue sit on raised protrusions of the tongue surface called papillae. There are four types of lingual papillae; all except one contain taste buds: Fungiform papillae - as the name suggests, these are slightly mushroom-shaped if looked at in longitudinal section. These are present mostly at the dorsal surface of the ...
The tongue can divide itself in dorsal and ventral surface. The dorsal surface is a stratified squamous keratinized epithelium, which is characterized by numerous mucosal projections called papillae. [11] The lingual papillae covers the dorsal side of the tongue towards the front of the terminal groove.
The papillary layer is the more superficial layer of the lamina propria. It consists of loose connective tissue within the connective tissue papillae, along with blood vessels and nerve tissue. The tissue has an equal amount of fibers, cells, and intercellular substance. The dense layer is the deeper layer of the lamina propria.
Median rhomboid glossitis is a condition characterized by an area of redness and loss of lingual papillae on the central dorsum of the tongue, sometimes including lesions of the tongue and palate. It is seen in patients using inhaled steroids and smokers, and is usually a kind of chronic atrophic oral candidiasis , but hematinic deficiency and ...
The sublingual papilla or sublingual fold is a small fold of soft tissue located on each side of the lingual frenulum. [1] The sublingual papilla marks the site of the sublingual gland [2] with its major sublingual duct [3] and its minor sublingual ducts [4] opening upon the papilla.
The wreckage of a Delta Air Lines-operated CRJ900 aircraft lays on the runway after a plane crash at Toronto Pearson International Airport. - Cole Burston/Reuters
Von Ebner's glands secrete lingual lipase, [1] beginning the process of lipid hydrolysis in the mouth. These glands empty their serous secretion into the base of the moats around the foliate and circumvallate papillae. This secretion presumably flushes material from the mouth to enable the taste buds to respond rapidly to changing stimuli.