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The Digestive System

The Digestive system for grade 3

WordDefinitionExample
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
Created by: Aamir on 2004-03-01



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