The circulatory system series as the transportation system of the body. It is a continues travel of the blood flow from the heart going to the different body cells, then going back to the heart.
Along with the blood, the circulatory system carries as well as distributes the digested foods, water and oxygen to the different cells in the body. It also collects waste from the cells such as carbon dioxide.
Through the circulatory system, the oxygen is transported to the lungs by the blood and the carbon dioxide is collected sending them of to the body's excretory organs.
The digested food from the intestine is also absorbed; then it is carried to the cells. The circulatory system also function to help maintain body pressure as well as helping to fight disease-causing organisms.
The system has three major parts; the heart, the blood,and the lungs. Each plays important roles in the circulation processes. The heart is responsible for the movement of the blood. It acts like a pump. There about 13,000 quarts of blood being pumped by the heart in one day.
The blood vessels serves as the passageway or pathways for the blood through out the entire body. There are three types of blood vessels; the arteries, the veins,and the capillaries.
The arteries are responsible fro carrying the blood back to the heart. The capillaries are responsible for carrying blood that is rich in oxygen to the different body tissues as well as in carrying out waste products from the cell away.