ANSC 1645 Lecture 8: The Digestive System and Bioavailability
13 Feb 2019
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Document Summary
Journey of a nutrient through the body. A nutrient that is absorbed from the gut and available to provide toward one"s. Chews food and mixes it with saliva. Swallows and ches food mixed with saliva. Churns and mixes food; secretes acid and a protein digesting enzyme. Completes digestion; absorbs nutrients into blood or lymph. Absorbs water, vitamins, and minerals; home to intestinal bacteria; passes waste material. Opens to allow waste to leave the body. Do not come in direct contact with the food being consumed. Produce saliva, which contains a starch digesting enzyme. Starch broken down into small chain carbohydrates by amylase. Makes bile, which aids in digestion and absorption of fat. Releases bicarbonate to neutralize intestinal contents; produces enzymes that digest carbohydrates, protein, and fat. The digestion and absorption pathway of pizza. Stores bile and releases it into the small intestine when needed. Seights, sounds, and smells of food preparing the digestive system for the arrival of food.
