This distance makes feet particularly vulnerable to circulation problems originating in the cardiovascular system. When the heart struggles to effectively pump blood, the extremities often show ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The circulatory system consists of three independent systems that work together: the heart ...

Blood circulation, as is now understood, is a double system. There is a circuit through the body (the systemic circulation) as well as one through the lungs (the pulmonary circulation).

the pulmonary circulation close pulmonary circuit The part of the circulatory system that involves the right side of the heart, the lungs, and the blood vessels that connect them together.