Cells must have oxygen and nutrients and must get rid of waste products. This exchange is done by the circulatory system—the body’s transport system. The circulatory system consists of blood
the heart
The circulatory system transports many important substances
such as oxygen and nutrients. The blood also carries disease-fighting materials produced by the immune system. The blood contains cell fragments and proteins for blood clotting. Finally
Cells must have oxygen and nutrients and must get rid of waste products. This exchange is done by the circulatory system—the body’s transport system. The circulatory system consists of blood
the heart
The circulatory system transports many important substances
such as oxygen and nutrients. The blood also carries disease-fighting materials produced by the immune system. The blood contains cell fragments and proteins for blood clotting. Finally
Human Circulatory System
Vena cava
Pulmonary vein
Aorta
Right lung
Right atrium
Right ventricle
The right side of the heart receives
deoxygenated blood and sends it to the lungs.
The left side of the heart receives oxygenated
blood from the lungs and sends it to the body.
Liver
Head and arms
capillaries
Kidneys
Pulmonary artery
Left lung
Left atrium
Left ventricle
Hepatic artery
