Overview cv functional curves Cardiac output (CO) curve describes a state of cardiac function a plot of the relationship between CO and right atrial pressure login to view 2 more bullets Vascular return curve login to view 4 more bullets Mean systemic pressure also known as mean circulatory pressure the x-intercept of the vascular function curve shows pressure that would be measured throughout cardiovascular system if the heart were stopped login to view 1 more bullet Inotropic Effects Inotropy describes the state of cardiac contractility Positive inotropy (↑ contractility) login to view 5 more bullets Negative Inotropy (↓ contractility) login to view 5 more bullets Effects of changes in blood volume login to view 10 more bullets Effects of changes in total peripheral resistance (TPR) login to view 14 more bullets