The Digestive System

Can you fill in the blanks with the correct parts of the digestive system:

Small Intestine - Where bile from the liver, and other digestive enzymes, help break down the food even more; the nutrients are absorbed into the blood stream. 

Oesophagus – A long tube that squeezes food down from the mouth to the stomach. 

Stomach – Food is churned and mixed with acids to form a liquid.

Anus – Where the stool exits the body and into the toilet.  

Salivary Glands – Saliva is produced to help break down the food in the mouth.

Mouth – Where food enters the body and is chewed up into small pieces by the teeth.

Large Intestine – Absorbs water and remaining nutrients. The remaining food waste knows as stool, faeces or poo is moved on to the rectum.

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Fun Facts about the Digestive System

  • Your body can move food through the digestive system even while you are upside down. Food is not moved down by gravity, it is muscles that move it along.
     
  • Some washing powders remove stains by using the same enzymes as the ones found in your digestive system.
     
  • Platypuses and seahorses have no stomachs.
  • Tummy rumbles are called borborygmi and are happening all the time. Borborygmi are the sounds of the muscles in your stomach and small intestine squeezing together to push foods, liquids and gases though the digestive system.  The growls and rumbles just seem louder when your stomach is empty because there is no food to muffle it.
     
  • The amount of saliva you make increases when you vomit to protect your teeth from the acid in your stomach that is in your sick.
     
  • A man named Charles Osborne had the Hiccups for 68 Years, from 1922 to 1990.  It is estimated he hiccupped over 430 million times in his life. 
     
  • The reason you burp is to release extra air that you swallow if you - eat too fast, talk while you eat, chew gum or drink fizzy drinks.
     
  • Ever wondered why corn comes out in your poo? You haven't? It’s because the outside of the kernel of corn is made of something called cellulose, a plant fibre that we can’t digest.  We digest the inside of the corn, but the hull makes it out intact.  
     

Joke

Is it better to do homework on an empty stomach or a full stomach? 

- Neither!  It's better to do your homework on paper.

Send us pictures or videos of what you have done. Ask your parents to help you send them to rte.ie/learn