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THE DIGESTION SYSTEM MEGHAN LAI AND PAYASWINI GURUNG
Yum! What a delicious cupcake! Can I have one more? Please??
No Sara, you´ve had enough.
When Sara eats her cupcake, the first step of digestion happens in her mouth. Her teeth and her saliva break down the food chemically and mechanically.
After her teeth and saliva break down the food, her tongue pushes it down the esophagus and into the stomach.
Bile that is made in the liver and is stored in the gallbladder, along with enzymes and juices, are now churned and are being transported into the small intestine where it will mix with the thick paste from the stomach to break it down.
The paste from the stomach is going through Sara's intestines. First, the small intestine will absorb the nutrients and then it will travel to the large intestine where all the water will be absorbed and will become a solid waste. This process takes around 1 - 2 days. After the waste leaves the large intestine it will be held in the rectum until is leaves her digestive system.
2 days after she went to the cafe with her mom, Sara's cupcake has now been fully digested. She now is going to the bathroom to get rid of the solid waste.
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