This document is a biology quiz on the heart and heart disease containing 13 multiple choice questions. The quiz covers topics like labeling a diagram of the heart, identifying arteries that supply the heart muscle, defining medical terms like myocardial infarction and diastole. It also tests understanding of valves in the venous system, the equation for cardiac output, locations of the sinoatrial and atrioventricular nodes, and factors that increase the risk of coronary heart disease like smoking.