Human nutrition

1. HUMAN
HUMAN
NUTRITION
NUTRITION
Darío and
Irene
6th grade
CEIP Alfares

2. The digestive system breaks
down food into substances
the blood can absorb.
This is called digestion.
The digestive system consists of the
digestive tract and the digestive
glands.
THE DIGESTIVE SYSTEM

3. THE CIRCULATORY SYSTEM
The circulatory system consists of
the heart and blood vassels.
The heart is the organ that pumps
blood around the body.
Blood vassels carry blood around the body.

4. THE RESPIRATORY SYSTEM
The respiratory system is made up
of the respiratory tract and the lung.
Whe we inhale, our diapharagm
contracts and moves down.When
we exhale, our diaphragm and
intercostal muscles relax.

5. THE URINARY SYSTEM
The urinary system expels the waste
products carried by the blood from the cells.
The urinary system consists of the kidneys,
the ureters, the bladdeer and the urethra.
Some people's kidneys do not work properly
so they have to connect to a dialysis machine
to stay healthy.