Answer:
The condition that results from a partial blockage of the coronary arteries is ischemia.
Step-by-step explanation:
Ischemia is defined as the deficit or absence of blood flow to a tissue, which can produce damage and -if persistent- can cause the death or infarction of that tissue.
The coronary arteries are responsible for carrying blood to the heart muscle or myocardium and, in the case presented, an obstruction of blood flow through these arteries causes ischemia in the myocardium.
The disease related to ischemia of the myocardium is the ischemic cardiopathy, which can present itself in a reversible form -like angor pectoris- or irreversible as in the acute myocardial infarction.
The other options are not true because:
A and B. Hypertension and hypotension are related to the degree of blood pressure, which depends on other factors.
D. Cardiomegaly is the enlargement of the heart chambers, producing failure of pump function, and may be a consequence of ischemic heart disease or high blood pressure.