THE DIGESTIVE SYSTEM
EVERYBODY NEEDS TO KNOW THESE ELEMENTARY FACTS
THAT FOODS BEGINS ITS JOURNEY THROUGH OUR DIGESTIVE TRACTS
IN THE MOUTH AND BEFORE IT TRAVELS VERY FAR
IT MUST BE CHEWED THROROUGHLY
AND MIXED WITH SALIVA
DO YOU KNOW THE GENERAL DIRECTION?
THAT FOOD TRAVELS DURING THE PROCESS OF DIGESTION
THE FOOD BECOMES A BOLUS
AND IF IT IS FOLLOWED
DOWN THE ESOPHAGUS AFTER IT IS SWALLOWED
WAVES OF PERISTALSIS, PUSH IT RIGHT ALONG
TO THE STOMACH WHERE YOU’LL FIND ACID
THAT IS STRONG
DO YOU KNOW THE GENERAL DIRECTION?
THAT FOOD TRAVELS DURING THE PROCESS OF DIGESTION
AFTER BEING CHURNED IN THE STOMACH FOR A TIME
IT BECOMES A LIQUID, THAT IS KNOWN AS CHYME
THIS IS FURTHER BROKEN DOWN BY ENYZMES
AND ABSORBED THROUGH THE WALLS OF THE SMALL INTESTINE
WHOSE SURFACE AREA, IS GREATLY INCREASED BY
LOTS OF FINGER LIKE PROJECTIONS, CALLED VILLI
DO YOU KNOW THE GENERAL DIRECTION?
THAT FOOD TRAVELS DURING THE PROCESS OF DIGESTION
IF YOU TRAVEL FURTHER, DOWN THE LINE
FINALLY, YOU COME TO THE LARGE INTESTINE
WHERE WATER AND ELECTROLYTES ARE REMOVED
TURNING WHAT IS LEFT, INTO SOLID POO
AND WHAT BEGAN ITS JOURNEY AS A TASTY MEAL
GOES OUT THROUGH THE ANUS AS WASTE MATERIAL
NOW YOU KNOW THE GENERAL DIRECTION
THAT FOOD TRAVELS DURING THE PROCESS OF DIGESTION (2X)