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