this is the unit 2 of natural science

1. THE HUMAN BODY AND
NUTRICION
AITANA ARINERO SERNA
6º DE PRIMARIA
TEMA 2

2. WHAT DO WE NEED TO FUNCION?
OXYGEN
ENRGYNUTRIENTS
WASTE
SUBSTANCE

3. ·DIGESTION·
DIGESTION:
IS THE SET OF CHANGES THT
HAPPENS TO FOODD AS IT
TRAVELS ALONGTHE DIGESTIVE
SYSTEM. THE OBJETIVE IS TO
TRANSFORM FOOD INTO
NUTRIENTS.
ABSORPCION
THE NUTRIENDS PASS TO THE
BLOOD THROUGHT CAPILLARIES
EXCRETION
PREPARATION AND ELIMINATION
OF THE PART OF OUR FOOD THAT
OUR BODY DOES NOT NEED

4. · RESPIRATION·
PULMONARY
VENTILATION:
INSPIRATION (CONTRACTS)
EXPIRATION ( RELAXES)
GAS EXCHANGE:
IS WHEN OXYGEN
TRANSFORMINTO CARBON
DIOXIDE, THIS IS OCCURS
THANK TO AVEOLI.
PROCESS:
1. AIR ENTERS THROUGHT
THE NOSTRILS.
2. TRAVELS THROUGHT:
LARYNX,WINDPIPE,
BRONCHI,
BRONCHIOLES,AND LUNGS.
3. GAS EXCHANGE TAKES
PLACE IN THE ALVEOLI

5. · CIRCULATION·
• TRANSPORT
NUTRIENDS AND
OXYGEN THOUGHT
BLOOD.CONSITS OF
PLASMA AND BLOOD
CELLS ( RED BLOOD
CELLS, PLATELETS,
WHITE BLOOD CELLS)
• BLOOD VESSELS
VEINS ARTERIES
CAPILLARIES

6. EXCRETION 1. URINARY SYSTEM
URINARY SYSTEM
CONSITS:
KIDNEYS, URETERS,
BLADDER AND URETHRA
PASSES:
1. MIX WATER AND
MAKE ORINE
2. GO AND ACUMULATE
IN BLADDER
3. EXPELLED FROM THE
BODY THOUGHT
URETHRA

7. EXCRETION 2.SWEET GLANDS
FUNCTIONS:
- TO FILTER BLOOD
- TO CONTROL BODY
TEMPERATURE

8. FIN