Valvula (genitals)

	Valvula (genitals) A valvula is a small valve or fold. Valvula may refer to: * Valvula tricuspidalis, the tricuspid valve of the heart * Valvula sinus coronarii, the valve of coronary sinus * Valvula venae cavae inferioris, the valve of the inferior vena cava {{disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Valvula Tricuspidalis The tricuspid valve, or right atrioventricular valve, is on the right dorsal side of the mammalian heart, at the superior portion of the right ventricle. The function of the valve is to allow blood to flow from the right atrium to the right ventricle during diastole, and to close to prevent backflow ( regurgitation) from the right ventricle into the right atrium during right ventricular contraction (systole). Structure The tricuspid valve usually has three cusps or leaflets, named the anterior, posterior, and septal cusps. Each leaflet is connected via chordae tendineae to the anterior, posterior, and septal papillary muscles of the right ventricle, respectively. Tricuspid valves may also occur with two or four leaflets; the number may change over a lifetime. Function The tricuspid valve functions as a one-way valve that closes during ventricular systole to prevent regurgitation of blood from the right ventricle back into the right atrium. It opens during ventricular diastole ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Valvula Sinus Coronarii In the anatomy of the heart, the valve of the coronary sinus (also called the Thebesian valve, after Adam Christian Thebesius) is a semicircular fold of the lining membrane of the right atrium, at the orifice of the coronary sinus. It is situated at the base of the inferior vena cava. The valve may vary in size, or be completely absent.P. Felle, J. G. Bannigan. ''Anatomy of the valve of the coronary sinus (thebesian valve)''. Clinical Anatomy. Vol. 7 (1), 10-12Abstract/ref> It may prevent the regurgitation of blood into the sinus during the contraction of the atrium. This valve may be double or it may be cribriform Cribriform (Latin for "perforated") can refer to: * Cribriform plate * Cribriform pattern of histopathological architecture * Fascia cribrosa The cribriform fascia, fascia cribrosa also Hesselbach's fascia is the portion of fascia covering the ... (containing numerous small holes). References {{Authority control Cardiac anatomy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]