Page 132 - DK Children's Encyclopedia

Human body SEE ALSO

▸ ▸ Biology p.38
▸ ▸ Body cells p.41
The body is made from lots of different parts ▸ ▸ Carbon cycle p.49
called organs. Each organ has a different job ▸ ▸ Heart p.128
to do. Organs work with muscles and other ▸ ▸ Lungs p.149

parts of the body to make important things ▸ ▸ Monkeys and
happen, such as breathing, digestion, apes p.170
and movement.

Nervous system
Body systems The brain thinks
Organs that are linked and controls body
together are called systems. movement. Signals
are sent to the brain
Each system has its own job, Respiratory system through nerves.
The lungs bring air into
but they work together, too. the body and send waste
air out. They supply
oxygen to the blood. Circulatory
system
The heart pumps
blood around the
Body ingredients body in a loop to
transport oxygen
The human body is made up of tiny parts called and food.
cells. The cells of the body contain lots of
different ingredients. They all have different
uses in the body.
Digestive
system
The stomach and
intestines break
down the food so
it can be used to
power the body.
Calcium helps muscles One-fourth of our
to work and the heart to bodies is carbon. It is
keep beating. also found in diamonds!
Urinary system
Skin and hair The kidneys clean
system the blood and make
The skin is a urine from the
waterproof layer waste. The bladder
that protects the stores the urine.
A tiny amount of iron Tears contain sodium body from germs
and sunshine. Hair
is found in the body. It chloride, which is the keeps us warm.
makes your blood red. same as table salt.
Muscular system
The muscles move
all the parts of the
body. They make the
heart pump and
Skeletal system the lungs breathe.
The skeleton is a
frame of bones that
protects the inner
Phosphorus helps Over half of the body organs of the body.
make bones strong. is made of water. It also allows
Matches burn using Water is found in our movement.
phosphorus. blood and cells.

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