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