Digestion Song

Let’s listen to a song

Digestion Blues  Digestion starts in the mouth, Where the food’s chewed up before it heads South. The salivary glands make it all wet, And it’s there that the food starts to digest. CHORUS:

Chew it up and swallow those itty-bitty pieces,

Take out all the good stuff, in the end it turns to faeces.

Churn it up and swallow it, turn it into goo.

Now you get to sing those digestion blues. 

The esophagus squeezes the food on down, And into the stomach, that’s where it’s found. The gastric juices break down the food, And the stomach muscles churn it up, so it can be used. CHORUS:

Chew it up and swallow those itty-bitty pieces, Take out all the good stuff, in the end it turns to faeces. Churn it up and swallow it, turn it into goo. Now you get to sing those digestion blues. 

The pancreas and liver add insulin and bile. It’s in the duodenum for just a little while. This gooey, gooey muck is now called chyme, It’s nutrients are taken in the small intestine.  CHORUS:

Chew it up and swallow those itty-bitty pieces, Take out all the good stuff, in the end it turns to faeces.

Churn it up and swallow it, turn it into goo.

Now you get to sing those digestion blues. 

It’s in the large intestine where the water’s taken out, The chyme’s compacted nicely, of this there is no doubt. It passes through the rectum, the anus is at the end, The sphincter muscle contracts, your bowel movement begins. CHORUS: Chew it up and swallow those itty-bitty pieces, Take out all the good stuff, in the end it turns to faeces. Churn it up and swallow it, turn it into goo. Now you get to sing those digestion blues.   

RevisionDigestive System

Parts of a digestive system

Gullet

Stomach

Large intestin

e

AnusSmall intestine

Mouth

2 main function digestive system

2. Absorbs the simple food substances so that they can be used by the body

1. Breaks down food into simple substances.

The process where food is chewed and broken down into simple substances

in the body.

chew

Broken

down

What is digestion?

Starting from The Mouth

The teeth chews and grinds food into smaller pieces.

The saliva makes food soft enough to swallow.

The digestive juices in the saliva helps digest food slightly.

Next The Gullet

gullet

Allows food to move from the mouth down to the stomach.

To the Stomach

Food is crushed further and mixed with digestive juices.

After some time, the food will look like a ‘thick soup’.

The Small intestine

More digestive juices are added to the food.

Food substance are so tiny that they can pass through the walls of intestine.

The Water Absorber- Large intestine

Large intestine

This is where the undigested food go!Most of the water is removed from the food here.

The last step- The Anus

The anus

The undigested food is passed out of the body as waste through an opening called the anus.

What do you think?

Which organ system(s) do we need the least? Explain your answer.

There is no one system we need the least because all the organ systems need to work together to enable us to function properly.

✗The digestive system. If we do not eat for a few days, we will not die.

The question

Food is mixed with digestive juices in the ______________.It becomes a thick ‘soup’ after a few hours.

It is then passed into the ________________ where the useful bits are absorbed into the _______________.

Undigested food is later passed out of the body through the ________.

What do you think?

Food is mixed with digestive juices in thestomach.It becomes a thick ‘soup’ after a few hours.

It is then passed into the small intestine where the useful bits are absorbed into the large intestine.

Undigested food is later passed out of the body through the anus.

✗

Which part (A,B,C, D or E) is food being digested and passed into the

blood vessels?

A

B

C

D

E Answer: B ✗

In what way is a balloon like the stomach?

The shape.✗

It is smaller when empty and expands when it is full.

Let’s learn together!

Which of the following does not take place in the mouth during

digestion?

Saliva makes the food soft enough to swallow.

Which of the following does not take place in the mouth during

digestion?

Our tongue shapes the food into a ball.

Our teeth chop up the food into smaller pieces.

Digested food is absorbed into the blood. ✔

Water

When undigested food reaches the large intestine, ___________ is

removed from it.

Urine

Carbon Dioxide

Solid waste

When undigested food reaches the large intestine, ___________ is

removed from it.

✔

Mouth, gullet, stomach, small intestine, large intestine and the anus.

Heart, blood vessels, blood.

Break down food into simple substances.

Carry food, water and oxygen to all parts of the body.

Name one function of the digestive system.

Name one function of the digestive system.

✔

Gullet

Mouth

Stomach

Small Intestine

In the digestion process, food is broken down into simpler substances. In which part

of the body is the digested food being absorbed into the blood?

✔

mouth and stomach

small intestine and large intestine

mouth, stomach and small intestine

mouth, stomach, small intestine and large intestine

In which part of the digestive system are the digestive juices found in the system?

✔

Undigested food particles are too big to pass through the walls of the small intestine into the

blood stream

Undigested food particles are too big to be carried in the blood.

Absorption into the blood stream will not start unless all the food is digested.

Undigested food particles contains waste materials that may poison the blood.

Which of the following explains why food must be completely digested before it can pass through the blood stream?

✔

Mini-Quiz

The digestion of food is completed

In the large intestineIn the large intestine

In the small intestineIn the small intestine ✔

QUIZ TIME!

What helps to break the food even further in the stomach?

The salivary glands in the stomach helps us to break down the food even further.

The salivary glands in the stomach helps us to break down the food even further.The gastric juices in the stomach helps us to break down the food even further.

The gastric juices in the stomach helps us to break down the food even further.

✔

Undigested food goes to the

Large intestineLarge intestine

Small intestineSmall intestine

✔

Digestion starts in the mouth and ends in the large intestine.

TrueTrue

FalseFalse ✔

Normal faeces are solid.

TrueTrue

FalseFalse

✔