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Last Update: 01/29/2025 02:33 PM
Current Deck: PHYSIOLOGY::exam one
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Commit #272766
What is the effect on loop with an increase in end-diastolic volume (pre-load)? What is the effect on stroke volume?
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Commit #272766End-diastolic
volume , or “preload”, is volume of blood contained in the ventricle just
before contraction. Increasing this
volume means more fluid (blood) enters the ventricle during diastole and shifts
the curve to the right. Frank-Starling
relationship holds that as end-diastolic volume increases, stroke volume
increases (everything coming in gets pumped out). Note the increase in the width of the
pressure-volume loop