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 evolves from the atrivoventricular valve in our primitive relatives. The tricuspid valve is on the right side of the heart. The right side of our ancestor's heart has 3 cusps (anterior, posterior, and medial) between the atrium and ventricle. This evolved to the tricuspid valve in mammals.