THE CIRCULATORY SYSTEM

FORMED BY:• BLOOD VESSELS• THE HEART• BLOOD

• FUNCTION: the circulatory system carries nutrients and oxygen all over the body.

• IT also helps eliminate the waste (CO2)

• NUTRIENTS ------- food• OXYGEN (O2) --------- air in the LUNGS.

BLOOD VESSELS

Blood vessels

• Blood vessels are TUBES that contain blood.

ARTERIESgo from the heart to all the parts of the body with nutrients and oxygen

VEINSGo from the body to the heart with Carbondioxide

Nutritients and oxygen go to all the parts of the body through the BLOOD

in the arteries.

THE HEART

The Heart

• The heart is an organ that pumps ( moves ) the blood in the body.

http://www.youtube.com/watch?v=NF68qhyfcoM