The cardiovascular system is the system in which it helps to circulate blood throughout your entire body. However, that's not its only function. It also helps to transport both oxygen and carbon dioxide, hormones, numerous cells, and also nutrients to the body's tissues and organs. This system consists of the heart, blood, and also blood vessels. The heart is a muscular structure that helps push the blood to flow throughout the body. It is composed of three layers the pericardium (around or outside of the heart), the myocardium (middle layer of the heart), and the endocardium (the inside of the heart). The blood vessels consist of arteries, capillaries, and veins. They help to transport blood throughout the body and also carry blood away or
