| tricuspid valve | <anatomy> This heart valve, named for its three cusps (leaflets), divides the right atrium and the right ventricle. When the right atrium contracts blood flows through the tricuspid valve into the right ventricle. On closure, the tricuspid prohibits the backflow of blood into the right atrium. (19 Jan 1998) |
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| tricuspid valve insufficiency | Backflow of blood from the right ventricle into the right atrium, owing to imperfect functioning of the tricuspid valve. (12 Dec 1998) |
| tricuspid valve prolapse | Abnormal protrusion of one or more of the leaflets of the tricuspid valve into the right atrium during systole. (12 Dec 1998) |
| tricuspid valve stenosis | The pathologic narrowing of the orifice of the tricuspid valve. (12 Dec 1998) |
| septal cusp of tricuspid valve | The leaflet of the tricuspid valve located adjacent to the interventricular septum. Synonym: cuspis septalis valvae atrioventricularis dextrae. (05 Mar 2000) |
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| tricuspid | 1. Having three cusps, or points; tricuspidate; as, a tricuspid molar. 2. <anatomy> Of or pertaining to the tricuspid valves; as, tricuspid obstruction. <anatomy> Tricuspid valve, the valve, consisting of three triangular membranous flaps, at the opening of the right auricle into the right ventricle in the heart of most mammals; sometimes called the tricuspid valves, each flap being regarded as a valve. Origin: L. Tricuspis, -idis; tri- (see Tri-) + cuspis a point: cf. F. Tricuspide. Source: Websters Dictionary (01 Mar 1998) |
| tricuspid area | The region of the chest wall over the lower part of the body of the sternum, where the sounds produced at the tricuspid valve are heard most distinctly. (05 Mar 2000) |
| tricuspid atresia | Absence of the orifice between the right atrium and ventricle, with the presence of an atrial defect through which all the systemic venous return reaches the left heart. As a result, there is left ventricular hypertrophy (hypertrophy, left ventricular) because the right ventricle is absent or not functional. (12 Dec 1998) |
| tricuspid incompetence | Defective closure of the tricuspid valve permitting regurgitation into the right atrium during systole. (05 Mar 2000) |
| tricuspid insufficiency | See: valvular insufficiency. (05 Mar 2000) |
| tricuspid murmur | A murmur produced at the tricuspid orifice, either obstructive or regurgitant. (05 Mar 2000) |
| tricuspid orifice | An atrioventricular opening which leads from the right atrium into the right ventricle of the heart. Synonym: ostium atrioventriculare dextrum, ostium venosum cordis. (05 Mar 2000) |
| tricuspid stenosis | Pathologic narrowing of the orifice of the tricuspid valve. (05 Mar 2000) |
| tricuspid tooth | A tooth having a crown with three cusps. (05 Mar 2000) |
| abnormal cleavage of cardiac valve | Congenital malformation of a valve leaflet with a defect extending from the free margin. (05 Mar 2000) |
| Amussat's valve | A series of crescentic folds of mucous membrane in the upper part of the cystic duct, arranged in a somewhat spiral manner. Synonym: plica spiralis ductus cystici, Amussat's valve, Heister's valve, spiral valve of cystic duct, valvula spiralis. (05 Mar 2000) |
| anterior cusp of atrioventricular valve | The anterior leaflet or valvule of either the tricuspid or mitral valves. Synonym: cuspis anterior valvae atrioventricularis dextrae/sinistrae. (05 Mar 2000) |
| anterior urethral valve | A crescentic horizontal fold in the proximal spongy urethra. (05 Mar 2000) |
| aortic valve | The heart valve that divides the left ventricle and the aorta. The aortic valve opens during left ventricular contraction and then closes to prohibit the backwash of oxygenated blood from the aorta into the ventricle. The aortic valve has 3 valve cusps. (27 Sep 1997) |