【单选题】Blockage of blood flow in the proximal part of the anterior interventricular artery could deprive a large area of heart tissue of blood supply, unless a substantial retrograde flow into this artery de...
【单选题】Atherosclerosis can narrow the coronary arteries, leading to decreased blood flow and hypoxia of cardiac cells (cardiomyocytes). This causes the patient to experience angina. Which one of the followin...