The force that the heart must overcome to eject blood into the aorta is described by which term?

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The force the heart must overcome to eject blood into the aorta is described by afterload. Afterload represents the pressure the ventricle must generate to open the aortic valve and push blood into the systemic circulation. It is set largely by the aortic pressure and systemic vascular resistance—the higher these are, the greater the workload on the ventricle during systole. When afterload increases, the heart has to work harder, which can reduce stroke volume if contractility doesn’t compensate and also raises myocardial oxygen demand. Alveolar ventilation deals with moving air for gas exchange in the lungs, not the pressure the heart must overcome. Blood pressure is related to afterload as the load the heart faces, but afterload specifically refers to the heart’s workload during ejection, whereas informed consent is unrelated to cardiac mechanics.