aortic valve

aortic valve
The closure mechanism of the dorsal vessel, separating the aorta and the heart proper.

Online Dictionary of Invertebrate Zoology. . 2005.

Look at other dictionaries:

  • Aortic valve — The aortic valve is one of the valves of the heart. It lies between the left ventricle and the aorta.Function PhysiologyDuring ventricular systole, pressure rises in the left ventricle. When the pressure in the left ventricle rises above the… …   Wikipedia

  • Aortic valve — One of the four valves in the heart, this valve is situated at exit of the left ventricle of the heart where the aorta (the largest of all arteries) begins. The aortic valve lets blood from the left ventricle be pumped up (ejected) into the aorta …   Medical dictionary

  • aortic valve — noun a semilunar valve between the left ventricle and the aorta; prevents blood from flowing from the aorta back into the heart • Hypernyms: ↑semilunar valve * * * noun : the semilunar valve separating the aorta from the left ventricle * * * Anat …   Useful english dictionary

  • aortic valve — a valve in the heart, lying between the left ventricle and the aorta. It is a semilunar valve that prevents blood returning to the ventricle from the aorta …   The new mediacal dictionary

  • aortic valve — aor′tic valve′ n. anat. the semilunar valve between the left ventricle and the aorta, controlling the flow of blood …   From formal English to slang

  • aortic valve — Anat. a semilunar valve between the aorta and the left ventricle of the heart that prevents the blood from flowing back into the left ventricle. * * * …   Universalium

  • aortic valve — (Order Cladocera): Anteroventral opening in heart through which blood is pumped into aorta. (See also hepatic valve) [Stachowitsch, 1992] …   Crustacea glossary

  • Aortic valve stenosis — Classification and external resources ICD 10 I35.0, I06.0, Q23.0 …   Wikipedia

  • Aortic valve replacement — is a cardiac surgery procedure in which a patient s aortic valve is replaced by a different valve. The aortic valve can be affected by a range of diseases; the valve can either become leaky (aortic insufficiency / regurgitation) or partially… …   Wikipedia

  • Aortic valve area calculation — is an indirect method of determining the area of the aortic valve. The calculated aortic valve orifice area is currently one of the measures for evaluating the severity of aortic stenosis. A valve area of less than 0.8 cm² is considered to be… …   Wikipedia