| 释义 |
left atrioventricular valve
Thesaurus| Noun | 1. |  left atrioventricular valve - valve with two cusps; situated between the left atrium and the left ventriclebicuspid valve, mitral valveatrioventricular valve - either of two heart valves through which blood flows from the atria to the ventricles; prevents return of blood to the atrium |
EncyclopediaSeemitral valveleft atrioventricular valve
mi·tral valve [TA] the valve closing the orifice between the left atrium and left ventricle of the heart; its two cusps are called anterior and posterior. Synonym(s): valva atrioventricularis sinistra [TA], left atrioventricular valve ☆ , valva mitralis ☆ , bicuspid valve, valvula bicuspidalisvalve (valv) [L. valva, leaf of a folding door] Any of various membranous structures in a hollow organ or passage that temporarily close to permit the flow of fluid in one direction only.aortic valve Abbreviation: AoV
The valve at the junction of the left ventricle and the ascending aorta. It is composed of three segments (semilunar cusps) and prevents regurgitation. See: cardiac valve for illus. Bauhin valve See: Bauhin valveBéraud valve See: Béraud valvebicuspid valveMitral valve.Bjork-Shiley heart valveA synthetic artificial heart valve that is no longer commercially available but remains implanted in thousands of patients. The valve has been known to fracture at its struts during use, which results in death in the majority of cases.  CARDIAC VALVES: with ventricles relapsedcardiac valveAny of the four valves that prevent the backflow of blood as it passes into, through, and out of the heart. In order of the entry of the venous blood into the right atrium, they are the tricuspid, pulmonary, mitral, and aortic. See: illustrationCarpentier-Edwards valve See: Carpentier-Edwards valve.check valveA valve that permits fluids or gases to flow in just one direction. Check valves are used in infusion sets to prohibit backflow of fluids during intravenous therapy. coronary valveThe coronary sinus valve at the entrance of the coronary sinus into the right atrium. Synonym: thebesian valveeustachian valveThe valve at the entrance of the inferior vena cava.external nasal valveThe outermost opening of the nose (the alar rim).flutter valveA one-way valve used in chest tube drainage systems that allows fluids or gases to flow out of the chest, but does not let them reenter the body Synonym: Heimlich flutter valve; Heimlich valveGerlach valve See: Gerlach valvehigh-pressure relief valveA safety device built into a ventilator circuit that protects the patient from excessively high airway pressures by venting excess pressure into the atmosphere.Houston valve See: Houston valveHuschke valveLacrimal plica.ileocecal valveA projection of two membranous folds of the ileum of the small intestine into the cecum of the colon. It prevents backup of fecal material into the small intestine. Synonym: valvula coliinspiratory impedance threshold valve See: inspiratory impedance threshold valveinternal nasal valveNasal valve.Krause valve See: Krause, Karlleft atrioventricular valveMitral valve.mitral valveThe valve that closes the orifice between the left cardiac atrium and the left ventricle during ventricular systole. Synonym: bicuspid valve; left atrioventricular valvenasal valveThe site of greatest obstruction to airflow through the nasal passages. It extends from the bony cave near the piriform aperture into part of the cartilaginous vestibule of the nose. Synonym: internal nasal valvepop-off valveA safety valve that releases gas into the atmosphere from a ventilator circuit when the pressure in the circuit exceeds a known, safe level. TYPES OF MECHANICAL HEART VALVES: A. caged ball valve; B. monoleaflet. C. bileafletprosthetic heart valveA substitute valve used to replace a diseased valve. There are two main types of prostheses: those made from biological tissues, e.g., the heart valves of animals, esp. pigs, and those made from biocompatible materials, e.g., metals or polymers. Biocompatible mechanical valves may be constructed in a variety of ways, e.g., from a ball that moves up and down in a cage; with bileaflet valves that close in the midline; or with a single leaflet (which tilts to open and close). See: illustrationpulmonary valveThe valve at the junction of the right ventricle and pulmonary artery. It is composed of three semilunar cusps and prevents regurgitation of blood from the pulmonary artery back into the right ventricle. See: cardiac valve for illus. pyloric valveThe prominent circular membranous fold at the pyloric orifice of the stomach. Synonym: valvula pylorireducing valveA device to reduce the pressure of gas that has been compressed in a cylinder.right atrioventricular valveTricuspid valve.semilunar valveThe type of valve separating the heart and aorta and the heart and pulmonary artery. See: cardiac valve for illus. thebesian valveCoronary valve.tricuspid valve Abbreviation: TV
The valve that closes the orifice between the right cardiac atrium and right ventricle during ventricular systole. Synonym: right atrioventricular valve; valvula tricuspidalis See: cardiac valve for illus. valve of VaroliusIleocecal valve.See LAVV
See LAVVleft atrioventricular valve
Related to left atrioventricular valve: Atrioventricular septal defectSynonyms for left atrioventricular valvenoun valve with two cuspsSynonyms- bicuspid valve
- mitral valve
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