Join us as this ordinary chocolate cake goes through the extraordinary digestive system.

1


Join us as this ordinary chocolate cake goes
through the extraordinary digestive system.
2
The chocolate cake is now going to go through
digestion

• The brain is the first part of the digestive
  system. When you see a food, it gets all the
  supplies ready for digestion.

3
The Chocolate cake is entering the mouth.

• I am the mouth. When the piece of chocolate cake
  gets to my organ, I chew it up into smaller
  pieces using my teeth. When the chocolate cake is
  being chewed, saliva is squirted into me, the
  mouth, to soften the chocolate cake. I have a
  tongue that does a few things. One, is it
  provides taste for food. There are 4 different
  tastes, bitter ,sour ,salty sweet. When the
  chocolate cake is all chewed up the tongue pushes
  the chocolate cake to the Esophagus.

4
Now the chocolate cake is in the Esophagus

• Hi! I am the Esophagus. My job is to take the
  chewed chocolate cake and deliver it to the
  stomach. I am about 10 inches long. When my
  muscles move to deliver the chocolate cake, it is
  called peristalsis. Bye!

5
The chocolate cake has now entered the Stomach

• I am the stomach and I break down the chocolate
  cake into smaller pieces. I do this by mixing the
  food with acid and digestive juices. I break the
  pieces up really small so the body can use it.
  The walls of the stomach contain a thick layer of
  mucous that protects the stomach from
  hydrochloric acids. When the pieces of food are
  in a form of porridge, my job is done! The food
  is now called chyme because my organ is done
  doing its job.

6
The piece of cake has now entered the Small
Intestine.

• I am the small intestine. My job is to take away
  the water thats in the chyme/chocolate cake.
• I am 22 feet long. I look like a long twisted
  tube.
• I have 3 parts. The Duodenum, Jejunum the
  Ileum.
• I absorb nutrients in me. I absorb iron in the
  Duodenum. I absorb vitamin v 12 and bile salt in
  the Ileum. Other nutrients called villi are taken
  in from the stomach to the Jejunum. Now the
  chyme/ chocolate cake has less water in it.

7
The chocolate cake/chyme is now in the large
intestine

• Hi! Im the Large Intestine. My job is to take
  all the water from the chyme/chocolate cake and
  put it in the blood.
• I am 1.5 meters long. I am almost a square but
  not quite. Now I am referred to as the Greek
  name, colon.

8
Now the Food is entering the Rectum.

• Hi! I am the Rectum! My job is to store the
  chyme/ chocolate cake in my organ. I am 6 to 8
  inches long. When the chocolate cake /chyme is
  ready to come out I send a message to the brain
  to tell the Anus to relax. When the anus relaxes
  you feel like you have to go to the bathroom.
  Then the chocolate cake comes out of the behind
  as feces. See ya!

9
Done

• The Digestive System is now done! The Chocolate
  cake has transformed from chocolate cake to
  feces!!
• 
  bye bye!!!!!!!!!