lingual tonsil

tonsil /ton·sil/ (ton´sil) a small, rounded mass of tissue, especially of lymphoid tissue; generally used alone to designate the palatine tonsil.

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tonsil of cerebellum  a rounded mass of tissue forming part of the caudal lobe of the hemisphere of the cerebellum.

faucial tonsil  palatine t.

lingual tonsil  an aggregation of lymph follicles at the root of the tongue.

Luschka's tonsil  pharyngeal t.

palatine tonsil  a small mass of lymphoid tissue between the pillars of the fauces on either side of the pharynx.

pharyngeal tonsil  the diffuse lymphoid tissue and follicles in the roof and posterior wall of the nasopharynx.

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lingual tonsil

n.

A collection of lymphoid follicles on the posterior portion of the dorsum of the tongue.

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lingual tonsil,

a mass of lymphoid follicles near the root of the tongue. Each follicle forms a rounded eminence containing a small opening leading into a funnel-shaped cavity surrounded by lymphoid tissue.

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lingual (ling´gwl),

adj pertaining to the tongue.

lingual appliances,

n.pl orthodontic appliances that apply force from the lingual aspect of the anterior teeth. This mode of treatment is used to reduce the visibility of the appliance and thus improve the appearance of the smile during treatment.

lingual arch,

n a space-holding arch or the basic arch for an active lingual orthodontic appliance. The arch usually spans around the inside of the dental arch from one first permanent molar to its antimere.

lingual bar, major connector,

n See connector, major, lingual bar.

lingual button,

n an attachment welded to the lingual side of the canine, premolar, or molar bands.

lingual cusps,

n the bumps or projections on the tongue side of the chewing surface of teeth.

lingual foramen

(ling´gwl frā´mn),
n See foramen, lingual.

lingual fossa(e),

n a depressed area that may appear on the lingual surface of selected anterior teeth.

lingual frenum,

n a band of tissue that extends from the floor of the oral cavity to the inferior surface of the tongue.

lingual groove,

n a furrow or channel that forms on the tongue side of selected anterior teeth.

lingual nerve,

n See nerve, lingual.

lingual papillae,

n the tiny, red protrusions covering the top surface of the tongue on which most of the taste buds can be found.

lingual peak, gingival,

n a lingual peak that characterizes the normal interproximal tissue, which is composed of a lingual papilla and a buccal papilla connected interdentally in a triangular ridge depression termed a col.

lingual pit,

n a pit that forms on the tongue side of the anterior teeth and certain maxillary posterior teeth.

lingual plate,

n See connector, major, linguoplate.

lingual ridge,

n a linear elevation that extends vertically from the chewing surface to the lingual developmental lobe on the tongue side of a canine tooth.

lingual tonsil,

n See tonsil, lingual.

lingual veins,

n the veins that run on the ventral surface of the tongue and terminate in the internal jugular vein.

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tonsil (ton´sil),

n a rounded mass of tissue, usually of a lymphoid nature.

tonsil, lingual,

n a variable mass of lymphoid tissue at the base of the dorsal surface of the tongue.

tonsil, palatine,

n one of two small tissue masses on opposite sides of the oropharynx, between the faucial pillars, which are believed to serve as the first line of defense against bacteria that enters the oral cavity via the oral cavity.

tonsil, pharyngeal

n a mass of lymphoid tissue on the posterior wall of the nasopharynx; also known as the adenoids.

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tonsil

1. a small mass of lymphoid tissue, especially that found in close association with the mucous membrane of the throat; generally used alone to designate the palatine tonsil. Other structures referred to as tonsils are the cecal, lingual, esophageal, paraepiglottic, pharyngeal and tubal lymphoid aggregations.

2. a small mass of tissue.

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cecal tonsil

the accumulated mass of lymphoid tissue in the wall of cecum especially the proximal segment of the avian cecum.

cerebellar tonsil

a rounded mass forming part of the cerebellum on its inferior surface.

esophageal tonsil

large volume of lymphoid tissue in the caudal segment of the duck's esophagus.

follicular tonsil

a tonsil bearing numerous invaginations of its surface epithelium (fossulae) each surrounded by lymphoid tissue to form a follicle, as in the palatine tonsils of cattle or the lingual tonsils of the horse.

lingual tonsil

diffuse collection of lymphoid tissue near the tongue root of most mammals.

palatine tonsil

see palatine tonsil.

paraepiglottic tonsil

a collection of lymphoid tissue craniolateral to the epiglottic base.

pharyngeal tonsil

a collection of lymphoid tissue in the roof of the nasopharynx in pigs.

soft palate tonsil

lymphoid tissue within the soft palate; principal tonsils in pigs in which it forms twin smooth patches of mucosa.

tubal tonsil

the lymphoid tissue clustered close to the pharyngeal orifice of the auditory tube.