CIRCULATORY SYSTEM
The heart
pumps
blood
arond
the bodie.
Arteries
Carry
Oxegen-ated
blood
arond
the
body.
Veins
Carry
deoxy-
genated
blood back
to the
heart.
Have thick
walls
because
they have
a big job.
Have thin
walls.
Cappilaries
Allow water
,oxygen,carbon
dioxcide,other
neutrients and
waste substances
to exchange between
blood and surrounding
tissues.
Heart
Cappilaries
Arteries
Veins