KINE 1P90 Lecture Notes - Lecture 10: Cardiac Output, Shimmer Volumes, Stroke Volume
18 Feb 2016
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Document Summary
The amount of blood pumped out by each ventricle per minute (not total amount of blood pumped out by the heart) Cardiac output is the same from each ventricle because the volume of blood flowing through the pulmonary system is equal to the amount flowing through the systemic system. Minor variations may occur based on external conditions. Each half of the heart pumps the equivalent of the entire blood volume/min. Body"s total blood volume averages 5 - 5. 5 litres (6 in some athletes) Right ventricle pumps 5 litres of blood through the lungs, and the left ventricle pumps 5l through systemic system. Cardiac reserve: co at rest - co at maximum exercise. Deliver adequate amount of oxygen to body tissue. Provide a pathway to allow body tissues to eliminate waste. 2 major adjustments necessary to meet demands during strenuous activity. Sv drops due to gravity, causing blood flow to legs which lowers the amount of blood returning to the heart.
