Digestion Flashcards
The first step to digestion is…
Food is chewed by teeth and rolled into a ball by the tongue
The step after chewing is…
It is mixed with saliva and swallowed
The step after it is swallowed is…
It is pushed into the oesophagus
After it has entered the oesophagus…
The oesophagus pushes the food down and down
After the oesophagus pushes the food down…
The end there is a muscle called a sphincter which is like a ring that can open and close.
What happens to the sphincter…
The food approaches the closed sphincter, the sphincter relaxes and allows the food to pass through to the stomach
When it has gone through the sphincter…
The Stomach has three tasks.
The first job of the stomach…
First it stores the swallowed food and liquid
The second job of the stomach…
The second job is to mix up the food, liquid and digestive juice produced by the stomach.
What is the third task of the stomach?
The third task of the stomach is to empty its contents slowly into the small intestine
When it has left the stomach…
As the food dissolves into the juices from the pancreas, liver and intestine the contents of the Intestine are mixed and pushed forward to allow further digestion
Penultimate one
The waste products of this process include undigested parts of the food, known as fibre, and older cells that need to be got rid of.
Final step in digestion is…
These materials are put into the colon, where they remain until they pushed out by our body from the anus
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