Cardiovascular System in its action
Cardiovascular system’s job is to pick up and deliver nutrients to all possible parts of our body. It consists of heart (main organ), blood vessels and blood itself (cardio refers to heart and vascular means vessels). Another name for this system is circulatory by its function to circulate blood through the body. This system represents a wide network of vessels that take nutrients, oxygen, hormones and other substances to cells and from them through blood.
According to Arkansas heart hospital in body of an average individual blood travels 60,000 miles through vessels daily. This as a true road of life that keeps people alive. Every “member” of the cardiovascular system is vital and cannot be taken away. Human’s heart is divided into two separate sides. Each of these sides has upper chamber called atrium and ventricle or lower chamber. This is a muscular pumping organ that is considered the most significant in our body. Blood vessels have a hollow space inside through which blood streams to each portion of the body and back. The size of each capillary, vein and artery matches the amount of blood that passes through it. Blood itself is formed by red and white blood cells, plasma and platelets and carries homeostasis. Each adult person has around 5 liters of blood running through his vessels.