Labeled Parts of the Cardiovascular System. The diagram is labeled with the main parts of the cardiovascular system: the heart, arteries, capillaries, and veins. Heart: A Muscular Pump.

The system of blood vessels in the human body measure about 60,000 miles (96,560 kilometers). Arteries carry oxygen-rich blood from the heart through the body.

The cardiovascular system is the body’s main transport system, and its efficiency is essential for health and longevity. As it ... this falls, roughly in line with the formula ‘220 minus age in years’ ...