Franky mode....

Frank-Starling curve

Definition

(1) A curve that show the contractility change in an intact heart.

(2) A graph to show the relationship (or ratio) between the atrial pressure (plotted along the x-axis) and the cardiac output or stroke volume (plotted along the y-axis).

Supplement

This graphical representation indicates that the more blood is returned to the heart, the more blood is pumped from it without the extrinsic signals.

• A graph in which cardiac output or stroke volume is plotted against mean atrial or ventricular end-diastolic pressure; with increasing venous return and atrial pressure the outputincreases until further increments overload the heart and the output falls. proportionately