THE CIRCULATORY SYSTEM

Definition: The Circulatory System is a system that transport all the blood to the body.

The circulatory system is composed of the heart and blood vessels, including: Arteries, veins and capillaries.

Veins: Tube that carries blood to the heart from other parts of the body.

Capillaries: A very thin tube, especially one of the smaller tubes that carry blood around the body.

Arteries: One of the thick tubes that carry blood from the heart to other parts of the body.

The heart is the most important organ of the circulatory system, because it pumps the blood to our body.

In the blood we have Red blood cells, White blood cells and platelets.

Red blood cells: Its function is to transport oxygen to body tissues and exchange it for carbon  dioxide.

White blood cells: Is in charge of fighting germs.

 

Platelets: Are small cells that are in our blood. When you make a wound the platelets are joined in a crust, so that stop you bleeding.

The Circulatory System we need to live.