| Zimmermann's corpuscle | <haematology> A discoid cell (3m diameter) found in large numbers in blood, important for blood coagulation and for haemostasis by repairing breaches (small breaks) in the walls of blood vessels. Platelet _ granules contain lysosomal enzymes, dense granules contain ADP (a potent platelet aggregating factor) and serotonin (a vasoactive amine). They also release platelet-derived growth factor which presumably contributes to later repair processes by stimulating fibroblast proliferation. Synonym: thrombocytes. (09 Oct 1997) |
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| lateral lingual swellings | In the embryo, paired oval elevations that appear in the floor of the mouth at mandibular arch level; the primordial elevations, composed of mesenchyme covered by ectoderm of stomodeal origin, merge to form the greater part of the anterior two thirds of the tongue. (05 Mar 2000) |
| lingual | <dentistry> The tooth surface next to your tongue or things mounted on the tooth surfaces next to your tongue. (08 Jan 1998) |
| lingual aponeurosis | The thickened lamina propria of the tongue to which the lingual muscles attach. Synonym: aponeurosis linguae. (05 Mar 2000) |
| lingual appliances | <dentistry> Orthodontic appliance fixed to the inside of your teeth. I.e. Lingual appliances are attached to the part of your teeth next to your tongue. (08 Jan 1998) |
| lingual arch | <dentistry> An orthodontic wire attached from molar to molar in the inside of your teeth. (08 Jan 1998) |
| lingual artery | <anatomy, artery> Origin, external carotid; distribution, runs along under surface of tongue, terminates as deep lingual artery; branches, suprahyoid and dorsal lingual branches and sublingual artery. Synonym: arteria lingualis. (05 Mar 2000) |
| lingual bar | A major connector located lingual to the dental arch joining two or more bilateral parts of a mandibular removable partial denture. (05 Mar 2000) |
| lingual bone | <anatomy> A U-shaped bone lying between the mandible and the larynx, suspended from the styloid processes by slender stylohyoid ligaments. See: hyoid apparatus. Synonym: os hyoideum, lingual bone, tongue bone. (05 Mar 2000) |
| lingual branches | Branches to the tongue. Nomina Anatomica lists lingual branches of 1) hypoglossal nerve, rami linguales nervi hypoglossi; 2) lingual nerve, rami linguales nervi lingualis; 3) glossopharyngeal nerve, rami linguales nervi glossopharyngei. Synonym: rami linguales. (05 Mar 2000) |
| lingual branch of facial nerve | Lingual branch (inconstant) of the stylohyoid branch of the facial nerve. Synonym: ramus lingularis nervi facialis. (05 Mar 2000) |
| lingual crypt | A pit lined with epithelium in the lingual tonsil. (05 Mar 2000) |
| lingual embrasure | A space existing on the lingual aspect of the interproximal contact area between adjacent teeth. (05 Mar 2000) |
| lingual-facial-buccal dyskinesia | A syndrome of potentially irreversible, involuntary, dyskinetic movements that may develop in patients who have been treated with antipsychotic medications (for example phenothiazines) longer-term. Other drugs known to cause tardive dyskinesia include: tricyclic antidepressants, selegiline, clozapine, levamisole and metoclopramide. (27 Sep 1997) |
| lingual flange | The portion of the flange of a mandibular denture that occupies the space adjacent to the tongue. (05 Mar 2000) |