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John and Rayyan 3/4 Seagull
Transcript of John and Rayyan 3/4 Seagull
The digestive system?
The digestive system is a system that takes the bad food out of your body and keeps the good food that helps you stay healthy.It is very important.
The respiratory system?
Without this system, you wouldn't be able to breathe,and what do you need to do to live?
BREATHE!This system is very important.
The skeletal system?
The skeletal system is your skeleton.[I think you
already know that]Without this system,you wouldn't be able to hold yourself [the muscles do the moving]and hold stuff.
All these systems are important, but which one is the most important?
The remaining food goes to the large intestine.At the end of the large intestine, it comes out of the anus into the toilet.
[Make sure you flush the toilet!]
By John and Rayyan
Although these are not all the systems, they are still the main ones.
They are all the most important!
How the digestive system works
Firstly you chew the food and mix it with spit.
Then it goes down the esophagus, a long tube.
It then goes to the stomach. It gets mushed , mixed and adds more
juices to break down the food.The food may stay
in the stomach for 2 to 5 hours.
After the stomach,
the food goes to the small intestine.Here, powerful
chemicals called enzymes and a juice called bile soak into
the food. The healthy food gets broken into very small pieces called molecules.The molecules are so small that they
can pass through the walls of the small intestine and into the
blood.The blood carries the molecules into the cells where they
will help you grow and stay fit.
The circulatory system?
The circulatory system makes blood go all around your
body, and in your blood, there is oxygen.You need oxygen to live.
The blood goes out through your arteries and in through your veins.
Without just one,you would die!
The human body needs oxygen to survive.Oxygen/air
enters the body through the nose.The inside of the nose warms the air.The little hairs in your nose catch
the dust, and the wetness in your nose catch the germs you breathe in.The air then goes down a tube called the trachea, a tube.It then goes through the
bronchial tubes, which deliver the air into the two lungs, where air is sent to the bloodstream.The lungs can't move air out by themselves.Breathing also requires help of the diaphragm,which is a muscle under the lungs.It pushes he air out of you.