Cardiovascular physiology is the study of the cardiovascular system , specifically addressing the physiology of the heart ("cardio") and blood vessels ("vascular").
3-512: In cardiovascular physiology , end-diastolic volume ( EDV ) is the volume of blood in the right or left ventricle at end of filling in diastole which is amount of blood present in ventricle at the end of diastole. Because greater EDVs cause greater distention of the ventricle, EDV is often used synonymously with preload , which refers to the length of the sarcomeres in cardiac muscle prior to contraction ( systole ). An increase in EDV increases
6-405: The names cardiac physiology and circulatory physiology . Although the different aspects of cardiovascular physiology are closely interrelated, the subject is still usually divided into several subtopics. Under most circumstances, the body attempts to maintain a steady mean arterial pressure . When there is a major and immediate decrease (such as that due to hemorrhage or standing up ),
9-538: The preload on the heart and, through the Frank-Starling mechanism of the heart, increases the amount of blood ejected from the ventricle during systole ( stroke volume ). The right ventricular end-diastolic volume (RVEDV) ranges between 100 and 160 mL. The right ventricular end-diastolic volume index (RVEDVI) is calculated by RVEDV/ BSA and ranges between 60 and 100 mL/m. Cardiovascular physiology These subjects are sometimes addressed separately, under
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