What is -gram/graphy

The second heart sound is associated with what mechanical event of the cardiac cycle?

a. Atrioventricular valve closure b. Atrioventricular valve opening c. Semilunar valve closure d. Semilunar valve opening

What is the cause of a myocardial infarction?

a. Decreased perfusion to the pulmonary ar-tery b. Partial or complete obstruction of a coro-nary artery c. Blockage in one or more of the great ves-sels d. Narrowing of part of the aorta