<unk>  <unk>  is the blood pressure in the<unk>  atrium of the heart.<unk>  reflects the amount of blood returning to the heart and the ability of the heart to pump the blood into the arterial system.<unk>  is often nearly identical to central venous pressure (CVP), although the two terms are not identical, as a pressure differential can sometimes exist between the venae cavae and the<unk>  atrium. CVP and<unk>  can differ when venous tone (i.e the degree of venous constriction) is altered. This can be graphically depicted as changes in the slope of the venous return plotted against<unk>  (where central venous pressure increases, but<unk>  stays the same; VR = CVP −<unk> .
Right atrial pressure
Transpulmonary pressure
Pulmonary wedge pressure
Left atrial volume
Intrapleural pressure
Coronary perfusion pressure
Alveolar pressure
Mean systemic pressure