| musculi linguae | The extrinsic muscles include the genioglossus, hyoglossus, chondroglossus, and styloglossus muscles; the intrinsic muscles are the vertical, transverse, and the superior and inferior longitudinal; all are innervated by the hypoglssal nerve. Synonym: musculi linguae. (05 Mar 2000) |
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| copula linguae | <anatomy> A median elevation in the floor of the embryonic pharynx caudal to the tuberculum impar. It merges laterally with the ventral part of the second and third branchial arches, and in later development is incorporated in the root of the tongue. Synonym: copula linguae, His' copula. (05 Mar 2000) |
| musculus transversus linguae | An intrinsic muscle of the tongue, the fibres of which arise from the septum and radiate to the dorsum and sides; action, decreases lateral dimension of the tongue; nerve supply, hypoglossal for motor, lingual for sensory. Synonym: musculus transversus linguae. (05 Mar 2000) |
| musculus verticalis linguae | An intrinsic muscle of the tongue, consisting of fibres that pass from the aponeurosis of the dorsum to the aponeurosis of the inferior surface; action, decreases the superior to inferior dimension of (flattens) the tongue; nerve supply, hypoglossal for motor, lingual for sensory. Synonym: musculus verticalis linguae. (05 Mar 2000) |
| corpus linguae | The oral part of the tongue anterior to the terminal sulcus. Synonym: corpus linguae. (05 Mar 2000) |
| septum linguae | The median vertical fibrous partition of the tongue merging posteriorly into the aponeurosis of the tongue. Synonym: septum linguae, septum of tongue. (05 Mar 2000) |
| nigrities linguae | In canines, a disorder associated with a deficency of nicotinic acid. Black to yellowish brown discoloration of the dorsum of the tongue due to staining by exogenous material such as the components of tobacco; usually superimposed on hairy tongue. Synonym: lingua nigra, melanoglossia, nigrities linguae. (05 Mar 2000) |
| sulcus medianus linguae | <anatomy> Median groove or median longitudinal raphe of tongue; raphe linguae; a slight longitudinal depression running forward on the dorsal surface of the tongue from the foramen caecum. Synonym: sulcus medianus linguae, median longitudinal raphe of tongue, raphe linguae. (05 Mar 2000) |
| nucleus fibrosus linguae | lingual septum |
| dorsum linguae | The back of the tongue; the upper surface of the tongue divided by the sulcus terminalis into an anterior two-thirds, the pars presulcalis (presulcal part), and a posterior one-third, the pars postsulcalis (postsulcal part). Synonym: dorsum linguae. (05 Mar 2000) |
| tunica mucosa linguae | Mucous membrane of the tongue, the mucosa of the dorsum of the tongue appears velvety due to the presence of vast numbers of papillae; that of the inferior surface is smooth and thinner. Synonym: tunica mucosa linguae. (05 Mar 2000) |
| tylosis linguae | Leukoplakia of the tongue. (05 Mar 2000) |
| facies inferior linguae | The surface of the tongue that faces the floor of the oral cavity, its mucosa being thin, smooth and devoid of papillae. Synonym: facies inferior linguae. (05 Mar 2000) |
| folia linguae | Numerous projections arranged in several transverse folds upon the lateral margins of the tongue just in front of the palatoglossus muscle. Synonym: papillae foliatae, folia linguae. Fungiform papillae, numerous minute elevations on the dorsum of the tongue, of a fancied mushroom shape, the tip being broader than the base; the epithelium of many of these papillae has taste buds. Synonym: papillae fungiformes, clavate papillae. (05 Mar 2000) |
| foramen caecum linguae | <anatomy> A median pit on the dorsum of the posterior part of the tongue, from which the limbs of a V-shaped furrow run forward and outward; it is the site of origin of the thyroid gland and subsequent thyroglossal duct in the embryo. Synonym: foramen caecum linguae, blind foramen of the tongue, caecal foramen of the tongue, Morgagni's foramen, pleuroperitoneal foramen. (05 Mar 2000) |