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 OESOPHAGUSINTO THE STOMACH

IN THE STOMACH FOOD IS TURN INTO LIQUID BYACIDS AND BILE

THEN GOES TO THE SMALL INTESTINE

IN THE SMALL INTESTINE FOOD GETS INTO OURBLOOD

WASTE GOES TO THELARGE INTESTINE AND THEN OUT TROUGH THEANUS AS POOP

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 FEELYOURTRACHEA?

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

NOW WE HAVE FOOD AND AIR, BUT IT NEEDS TO GET EVERYWHERE

THE HEART PUMPS BLOOD ALL AROUND THEBODY TROUGH VEINS AND ARTERIES

THE HEART PUMPS BLOOD ALL AROUND THEBODY TROUGH VEINS AND ARTERIES

AND IT COLLECTS WASTE

WE USE THE EXCRETORY SYSTEM TO GET RID OF IT

DIRTY BLOOD GETS INTO OUR KIDNEYS

KIDNEYS CLEAN THE BLOOD

FILTERINGEXPERIMENT

WASTE GOES TROUGH THE URETERS INTO THEBLADDER

WHEN THE BLADDER IS FULL WE NEED TO PEE

WE ALSO USE SWEAT TO GET RID OF WASTE

NOW LET’S DO IT IN OUR NOTEBOOKS