Question

You have figured out how pulmonary arteriole vasoconstriction could lead to high vascular resistance and therefore high blood pressure in the pulmonary circuit. this high resistance is going to make it harder for the heart to push blood through the vessels, overworking the heart and leading to heart failure. which side of the heart is most likely to be overworked?

Answer 1

The answer would be the right side.

Blood to lungs is pumped by the right ventricle. When there is increased vascular resistance in the lungs, the pressure will be increased called pulmonary hypertension. This will cause the right ventricle need to exert more force than usual.
Left ventricle would be responsible for the blood flow to the body.