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The Digestive System
The Digestive system for grade 3
Word | Definition | Example |
---|---|---|
Stomach | a large bag like organ | n/a |
Small Intestine | The organ in which most of the digestion occurs in the human body. | n/a |
Liver | One of the two "helper organs" that produces enzymes to break down large fat particles into smaller ones. | n/a |
Pancreas | One of the two "helper organs" that produces enzymes to help break down proteins, starches, and fats. | n/a |
Villi | Fingerlike structures that cover the inner lining of the small intestine. | Purpose: to increase surface area in the small intestine. More area = more absorption |
Large Intestine | gives water back to the body and turns vitamins minerals and water into solid waste | n/a |
Rectum | A short tube at the end of the large intestine that stores solid waste. | n/a |
Saliva | A liquid salivary glands produce and release. and starts chaemical breackdown | n/a |
Hydrochloric Acid | An enzyme released by Gastric Juice. | n/a |
Esophagus | long muscular tube located directly behind trachea | Function: secrete mucus to lubricate esophagus for a smooth passageway |
Hydrochloric Acid | denatures protein, kills bacteria, converts pepsinogen into pepsin | Chemical in the stomach |
Liver | associated organ. Largest internal organ | Inferior to diaphragm |
Bile | bitter brownish-greenish fluid that speeds up digestion | Biliruben is the main pigment found in bile. It's a bi-product of the RBC's breakdown |
Chemical Breakdown | Making it look different | baking a cake |
Mechanical Breakdown | making it smaller | chewing food |