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3 Cards in this Set
- Front
- Back
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Preload |
The resting tension or stretch on the heart muscle. -Correlates with the amount of blood in the ventricle at the end of diastole (the end diastoilic volume) |
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Afterload |
-The force or pressure against which the left ventricle must exert during systole to open the arotic valve and therefore eject blood systemically -Proportional to ventricle size and compliance, also related to the systemic vascular resistance |
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Frank Starling Law |
-Ventricular volume (preload), determines amount of blood ejected -Increased volume causes increased ventricular stretch and therefore improves forces of contraction |
