isovolumetric
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isovolumetric — SYN: isovolumic. * * * iso·vol·u·met·ric .ī sə .väl yu̇ me trik adj of, relating to, or characterized by unchanging volume esp relating to or being an early phase of ventricular systole in which the cardiac muscle exerts increasing pressure on… … Medical dictionary
isovolumetric contraction — isovolumic contraction see under period … Medical dictionary
isovolumetric period — isovolumic period in the cardiac cycle, an interval during which the cardiac muscle fibers are contracting or relaxing but the valves are all closed, so that ventricular pressure changes rapidly while volume remains constant; see p. of isovolumic … Medical dictionary
isovolumetric contraction phase — isovolumic contraction phase period of isovolumic contraction … Medical dictionary
isovolumetric relaxation phase — isovolumic relaxation phase period of isovolumic relaxation … Medical dictionary
isovolumetric relaxation — isovolumic relaxation see under period … Medical dictionary
relaxation — 1. Loosening, lengthening, or lessening of tension in a muscle. 2. In nuclear magnetic resonance, r. is the decay in magnetization of protons after the direction of the surrounding magnetic field is changed; the different rates of r. for… … Medical dictionary
Stirling engine — Alpha type Stirling engine. There are two cylinders. The expansion cylinder (red) is maintained at a high temperature while the compression cylinder (blue) is cooled. The passage between the two cylinders contains the regenerator … Wikipedia
Stirling cycle — This article is about the real Stirling cycle. For the idealized Stirling cycle , see the Stirling engine article. IntroductionThe Stirling cycle is a thermodynamic cycle that describes the general class of Stirling devices. This includes the… … Wikipedia
isovolumic — Occurring without an associated alteration in volume, as when, in early ventricular systole, the muscle fibers initially increase their tension without shortening so that ventricular volume remains unaltered. SEE ALSO: isometric. SYN: isochoric … Medical dictionary
