Plotting it out. Below is a graph of how much material (surface area) cans of variable aspect ratio require. On the x-axis is plotted the ratio of h/r (the height to radius ratio). As we can see, the graph has a minimum at h=2r (when the height is the diameter). This is what we calculated with our Calculus.
The chambers are the right atrium, the right ventricle, the left atrium, and the left ventricle. One pair of chambers, the right atrium and right ventricle, is directly connected to the pulmonary circuit. In this circuit, deoxygenated blood from the body enters the heart through the right atrium.
divides into the arteries that supply the forearm, the radial a. that follows the radius, and the ulnar a. that follows the ulna. Both the radial and ulnar aa. extend to the wrist. The systemic veins return deoxygenated blood to the right atrium of the heart via the superior vena cava and inferior vena cava.