Various types of human body systems.

1. OUR BODY
SYSTEMS
Anu Juneja
St.Joseph’s Convent School

2. Our body is made up of cells.Cells are the building blocks
of our body.They are the smallest functional unit of the
body

3. Some organisms are made up of only one cell they are
known as microorganisms. For example
Bacteria and amoeba

4. The
Skeletal
System
It gives shape and
support to our
body.
It is made up of
Bony framework.
There are 206
bones in our
body.
United framework
of bones is called
as skeleton.

5. The Muscular
System
Muscles are
attached to the
bones.
Muscles help in
body movement.
There are more
than 500 muscles
in our body.

6. The
Nervous
System
This system is
made up of brain,
the spinal cord
and the nerves.
This system helps
us to think
,reason and act
accordingly.
There are five
sense organs
which receives
information and
convey it to the
brain.

7. The
Circulatory
System
This system is
composed of heart
,blood and blood
vessels.
Blood carries Oxygen
and digested food to
all parts of the body .
Blood flows in the
blood vessels
Heart is the main
pumping organ of a
body which
continuously pumps
blood throughout our
life.

8. The
Respiratory
System
This system is
composed of nose,
nasal passage,
windpipe and lungs.
When we breathe in
the air goes inside our
body through our
lungs.
This year has oxygen
which is used to
oxidise the food and
release energy.
When we breathe out
the air containing
carbon dioxide is
exhaled out .

9. The Digestive
System
The process of
breaking down of
complex food into
simpler form is
called digestion.
Digestion takes
place in our
digestive system.
The nutrients are
absorbed by our
body .

10. The
Reproductive
System
This system
helps to
produce
babies.
It is the system
which helps
the life to go
on

11. The
Excretory
System
It is composed of
kidneys ,ureters ,
urinary bladder
and urethra.
This system helps
to remove the
waste and toxic
materials from the
body.