|
Arterial elastance
|
The ratio of left ventricular end-systolic pressure and stroke volume
|
|
Intravascular volume
|
The blood volume within the vascular system (arteries, capillaries, veins)
|
|
Mean systemic filling pressure
|
The pressure of venous return when cardiac activity is absent
|
|
Preload
|
Volume defined by the distending pressure it generates. In the heart, preload is LV wall stress at end of diastole (= EDV)
|
|
Stressed volume
|
The (theoretically measurable) volume of blood that exerts distending pressure against the vascular wall
|
|
Total body water
|
The amount of sodium-free water in the whole body, commonly divided into the extracellular fluid space and the intracellular fluid space
|
|
Unstressed volume
|
The volume of blood just to the point of filling the blood vessels but without exerting any pressure on the vessel walls
|
|
Vascular capacitance
|
The change in volume divided by the change in pressure (i.e., the inverse of elastance)
|
