Use the words in the box to fill in the blanks.
veins
arteries
nutrients
capillaries
away
transport
circulatory
blood
oxygen
lungs
heart
energy
carbon dioxide
pumped
dark
bright
intestine
heat
to
atmosphere
All animals need to
materials around to the
different parts of their body. This is the job of the.
system. The circulatory system consists of a liquid called
of vessels called
a pump called the,
and
and a series
One thing that must be transported around is a gas called
Oxygen enters the blood through the
It is then
through the heart and
around the body where it is used along with food to make
The body produces another gas called
which is a waste product. This gas is carried back to
the heart and then to the lungs where it is released back into the
The vessels that transport blood
called arteries. The blood in arteries is
rich in oxygen. The vessels that transport blood
heart are called veins. The blood in veins is
because it is low in oxygen.
join the arteries and veins.
from the heart are
red because it is
the
red
are small vessels that
from food are also transported around the body
by the circulatory system. They enter the blood from the small
The circulatory system also helps to regulate
around the body.
temperature by transporting.