What Does The Circulatory System Do?

Veins

The veins carry co2 back to

the heart.They get it off the

organs that used up all of the

o2.

Arteries

The arteries carry o2

to all of the organs

that need o2..

Heart

The heart pumps blood around the body and turns blood with co2 in, into blood with co2 in.

Capillaries

They are the

smallest of all

blood vessels.

They are only

1 cell thick.

They collect up

o2 to take to the

veins.

The circulatory system

By James Year 6

The heart