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Human systems 4th grade
ALL LIVING THINGS PERFORN 3 ACTIONS
NUTRITION
INTERACTION
REPRODUCTION
NUTRITION = GET ENERGY TO STAY ALIVE
NUTRITION BUT ALSO GET RID OF THE WASTE
WE GET ENERGY TROUGH 2 SYSTEMS
WE GET RID OF THE WASTE WITH OTHER 2
OUR BODY BURNS FOOD AND AIR TO GET ENERGY
TO GET FOOD WE USE THE DIGESTIVE SYSTEM
FIRST WE BITE
WE CHEW
AND SWALLOW WITH OUR MOUTH
THEN FOOD COMES TROUGH THE OESOPHAGUS
INTO THE STOMACH
IN THE STOMACH FOOD IS TURN INTO LIQUID BY
ACIDS AND BILE
THEN GOES TO THE SMALL INTESTINE
IN THE SMALL INTESTINE FOOD GETS INTO OUR
BLOOD
WASTE GOES TO THE
LARGE INTESTINE AND
THEN OUT TROUGH THE
ANUS AS POOP
Human systems 4th grade
NOW WE NEED OXYGEN
WE GET IT USING OUR RESPIRATORY SYSTEM
AIR GETS IN TROUGH OUR NOSE
THEN TROUGH A TUBE CALLED THE TRACHEA
CAN YOU FEEL
YOUR
TRACHEA?
THE TRACHEA IS DIVIDED INTO 2 BRONCHI
AND THEN ALVEOLI
IN THE ALVEOLI AIR GOES INTO OUR BLOOD
WASTE GAS GOES INTO OUR ALVEOLI
AND OUT OF OUR BODY
THE DIAPHRAGM PULLS OR PUSHES THE LUNGS
THE DIAPHRAGM PULLS OR PUSHES THE LUNGS
BUT IT ALSO PUSHES THE DIGESTIVE SYSTEM
Human systems 4th grade
NOW WE HAVE FOOD AND AIR, BUT IT NEEDS TO
GET EVERYWHERE
THE HEART PUMPS BLOOD ALL AROUND THE
BODY TROUGH VEINS AND ARTERIES
THE HEART PUMPS BLOOD ALL AROUND THE
BODY TROUGH VEINS AND ARTERIES
AND IT COLLECTS WASTE
Human systems 4th grade
WE USE THE EXCRETORY SYSTEM TO GET RID OF
IT
DIRTY BLOOD GETS INTO OUR KIDNEYS
KIDNEYS CLEAN THE BLOOD
FILTERING
EXPERIMENT
WASTE GOES TROUGH THE URETERS INTO THE
BLADDER
WHEN THE BLADDER IS FULL WE NEED TO PEE
WE ALSO USE SWEAT TO GET RID OF WASTE
Human systems 4th grade
NOW LET¡¯S DO IT IN OUR NOTEBOOKS

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Human systems 4th grade