4. ORY SYSTEM
THE RESPIRAT
The respiratory system
Is in charge of breathing
Beathing makes two
movements:
-First , we inhale air and
it goes into the lungs
- Then ,we exhale air
sending it out of the
lungs.
5. THE EXC
RETORY
SYSTEM
The excretory system
filters waste substances
from the blood
The excretory system is
made up of:
-Sweat glands in the
skin they produce
sweat