1. NUTRITION
By Lucia Ortega

2.  Nutrients give our cells all the energy they
need.
The digestive system, the respyratory
system, the circulatory system and the
excretory system carry out the function of
nutrion.

3. DIGESTIVE SYSTEM
It has two parts:
Digestive tract: oesophagus,
Pharynx and, large intestine and
stomach
Digestive gland: salivary glands,
Liver, small intestine and
pancreas

4. DIGESTIVE SYSTEM

5. THE RESPIRATORY SYSTEM
Breathing makes two movements:
First, we inhale air and it goes into to the lungs.
Then, we exhale air sending it out of the lungs.

6. THE RESPIRATORY SYSTEM

7. THE EXCRETORY SYSTEM
 Is made up of:
 Sweet glands in the skin. They produce sweat.
 The urynary system. This is made up of the
kidneys and the urinary tract

8. THE EXCRETORY SYSTEM

9. THE URINARY SYSTEM
1. The kidneys are on both sides of the spinal
column. They remove waste substances from
the blood and they make urine.
2. The ureters take urine from the kidneys to
the bladder.
3. The bladder stores the urine.
4. The urethra connects the bladder to the
outside

10. THE URINARY SYSTEM

11. THE CIRCULATORY SYSTEM
 Transports nutrients and oxygen to our cells.it
is made up of the heart, blood and blood
vessels.
The heart: is a muscular organ that pumps
blood around the body.
The blood: collect oxygen and nutrients and
transports then to our cells.
The blood vessels are tubes through which
blood circulates

12. THE CIRCULATORY SYSTEM

13. HUMAN CIRCULATION