Write the functions of Circulatory system?

Circulatory system

1. Circulatory system consists of the heart, a network of blood vessels and blood.
2. Heart: It is a muscular organ which pumps the blood into blood vessels and receives the blood from the body parts.
3. Blood vessels: They are thin tube like structures which start from the heart and run through out the body. They carry the blood.
4. Blood: Blood is a red colour fluid which flows in the blood vessels from the heart to the body parts and body parts to the heart.

Functions of the Circulatory system:

1. Circulates oxygen and removes Carbon Dioxide.
2. Provides cells with nutrients.
3. Removes the waste products of metabolism to the excretory organs for disposal.
4. Protects the body against disease and infection.
5. Clotting stops bleeding after injury.