How does the blood circulation work in the human body?


Circulatory movement is very important in the health of the human body and its ability to work daily, but how the circulatory system works, and how it reaches all parts of the body?
Blood moves to all parts of the body carrying food and oxygen once, or back from it loaded with waste that must be disposed of again. According to the Web site "specialist".

The heart is the main center of the circulatory system. When the heart beats, it pumps blood through blood vessels throughout the body, which together with the heart form the circulatory system, or circulatory system.

And blood vessels, are flexible tubes through which the blood reaches to its destination back and forth.

Blood works not only to carry oxygen from the lungs and food from its sources to the body, but also carries on the trip back wastes and poisons that must be disposed of, such as carbon dioxide.

The blood circulation in the body contains three types of blood vessels, namely arteries, capillaries and veins.

The arteries generally carry oxygen-laden blood from the heart to reach all tissues of the body, and diminish in size as they move away from the heart.

As for the veins, the blood returns to the heart again during the circulatory system. The blood from the veins lacks oxygen, and it is rich in waste.

The arteries and veins connect capillaries composed of small vessels.

The blood circulation in the human body does not stop, with the support of the heart, which constantly pumps blood into the blood vessels.