Have you ever thought why the circulation of the body was so important. The circulation of the blood in the body happens within the circulatory system. It is a system that is divided into blood vessels such as arteries and veins. The circulatory system or the circulation is responsible for bringing oxygen and nutrients to the cells, and removing carbon dioxide and waste products from the cells. The heart is responsible for controlling the whole circulation.
If you were looking in the circulatory system for where blood containing oxygen was located, you would look in the arteries. The arteries are muscular vessels that get smaller the further away they are from the heart. The tiniest vessels, which are equivalent to arteries, are the capillaries. They are the smallest branches of the arteries. The capillaries are responsible for carrying oxygenated blood to the tightest areas of the body. They are located within the lungs, in order to maximize the amount of oxygen that will enter the blood.
As we travel through the circulatory system, the capillaries that have formed will connect with small veins in the body called venules. The venules are responsible for carrying carbon dioxide and waste products from the organs. The venules as the venules move closer to the heart, they will come together to form veins. These veins then will enter the right side of the heart.
The great thing with traveling through the circulation system is to see how the body will keep the oxygenated blood separate from the deoxygenated blood. Also in terms of circulation, the blood will always flow in the same direction using the set path. For example, it is expected that the blood will flow from the intestines to the liver to carry nutrients there for storage or processing.
The blood still flows through the body in the same direction. As well as oxygen and carbon dioxide, many other substances are transported in the blood. The blood flows through the digestive system collects digested food and transported to the liver to be used or stored. This is why certain cancers can form in one area of the body, and be transported to another area of the body.



