Question

aftereload the tension during contraction of heart. resistance against which the left ventricle ejects its volume of blood.

Answer 1

The afterload for the heart is the arterial pressure into which the heart ejects its stroke volume. ... Contraction of the heart begins its isovolumetric phase which raises the pressure to the diastolic arterial pressure. When it reaches this pressure, the aortic valve opens and the heart ejects blood into the aorta.