Analysis of Cardiac Output Curve and Venous Return Curves

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Analysis of Cardiac Output and Venous Return Curves:
The cardiac output curve and venous return curve depict the changes in them with changing right atrial pressure. Venous return and cardiac output can be equal at only one point where both curves intersect each other. Sympathetic stimulation, positive inotropic agents, etc shift the cardiac output curve upwards. Inhibition of sympathetic activity, negative ionotropic agents, and certain disease conditions move this curve downwards. An increase in intrapleural pressure shifts the curve to the right, and a decrease shifts it to the left. An increase in blood volume and increased venous tone shifts the venous return curve upwards. And decrease in blood volume and venous tone moves the curve downwards. An increase in arteriolar tone decreases the slope of the curve. And decrease in the arteriolar tone increases the slope.

Chapters:
00:00 Intro
00:25 Cardiac Output Curve
03:27 Venous Return Curve
10:40 Analysis of Cardiac Output and Venous Return Curves Together
14:45 Summary
15:59 Bonus Point

Dr Vipul Navadiya
Nonstop Neuron
Medical Animation
Medical Animation Videos
Physiology
Vascular Function Curve

DISCLAIMER: This video is for education purposes only. Although every effort is made to ensure the accuracy of the material, viewers should refer to the appropriate regulatory body/authorized websites, guidelines, and other suitable sources of information as deemed relevant and applicable. In view of the possibility of human error or changes in medical science, any person or organization involved in the preparation of this work accepts no responsibility for any errors or omissions, or results obtained from the use of information in this video.