17 Heart and Circulation V

Primary problem blood volume and edv cardiac effects

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Primary Problem: Blood Volume and EDV) Cardiac Effects ( HR and Contractility) (-) (+) (+)
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Compensation for Dilation in One Bed by Constriction in Others
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Interstitial Fluid Reabsorption as a Compensatory Mechanism in Response to Hemorrhage
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Summary of Cardiovascular Effects of Hemorrhage
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Exercise
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Cardiovascular Regulation During Exercise Sympathetic Stimulation Heart Rate Contractility (SV) Vasodilation TPR Cardiac Output EDV ~ constant during exercise Venous Return TPR
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Frank-Starling’s Curve During Exercise Contractility Shifts the Frank-Starling Curve End-Diastolic Volume (EDV) Stroke Volume During Exercise EDV remains ~ same because the increase in contractility allows an increase in stroke volume at the same EDV Resting Stroke Volume
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Regulation of Cardiac Output During Exercise Cardiac Output = Heart Rate x Stroke Volume  120% 90% 30% Contractility Sympathetic Stimulation (Central Control) Vasodilation (Local Control) Venous Return
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Summary of Cardiovascular Changes During Mild Exercise
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Control of the Cardiovascular System During Exercise
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Distribution of Cardiac Output at Rest and During Exercise
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Systolic Heart Failure
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Congestive Heart Failure Heart Disease Contractility Cardiac Output EDV and RAP Venous congestion and tissue edema
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Frank-Starling Curve During Heart Failure
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Primary Problem Blood Volume and EDV Cardiac Effects HR and...

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