1.5 Minimum Cost Analyses. A similar, but different problem is the determination of the point of minimum total cost. Instead of balancing two methods with different fixed and variable costs, the aim is to bring the sum of two costs to a minimum.
The tricuspid valve forms the boundary between the right ventricle and the right atrium. Deoxygenated blood enters the right side of the heart via the inferior and superior vena cava.
The tricuspid valve allows blood to flow from the right atrium to the right ventricle, and prevents backflow. The two semilunar valves allow blood to flow from the ventricles, either into the pulmonary arteries from the right side, or into the aorta from the left side, and prevent backflow.