Definition: 'Isometric Period Of Cardiac Cycle'
isometric period of cardiac cycleType: Term
1. that period in which the muscle fibers do not shorten although the cardiac muscle is excited and the pressure in the ventricles rises, extending from the closure of the atrioventricular valves to the opening of the semilunar valves (isovolumic constriction) or the reverse (isovolumic relaxation).
The information shown above for isometric period of cardiac cycle is provided by Stedman's.
* Stedman's, part of Lippincott Williams & Wilkins, provide a comprehensive line of health-science publications for healthcare professionals and medical students.