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education/nutrition/Digestive System.md
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@ -27,4 +27,13 @@ There are 3 main sphincters associated with digestion:
1. Gastroesophageal/lower esophageal/cardiac - connects the esophagus to the stomach
2. Pyloric - connects the stomach to the duodenum (small intestine)
3. ileocecal valve - Connects the small intestine to the large intestine
The upper esophageal sphincter is at the top of the esophagus (not as important).
The upper esophageal sphincter is at the top of the esophagus (not as important).
# Digestion
**Mechanical digestion refers to the physical treatment that food undergoes** while it is in the intestinal tract
Chemical digestion refers to the breakdown of large molecules in food into smaller components, primarily by the action of **enzymes**.
- Enzymes are a protein that speeds up the rate of a chemical reaction without being altered in the process.
- Enzymes usually end in -ase and begin with the name of whatever they are working to digest:
- Amylase digests amylose
- Maltase digests maltose