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Apologia General

Module 13

digestion The process by which an organism breaks down its food into small units that can be absorbed by the body.
ingestion The process of digestion starts with ingestion of food or drink.
physical digestion The first part of digestion: breaking up food into tiny pieces without changing the chemical nature of the food.
saliva The "spit" in the mouth which contains chemicals that break down starch.
chemical digestion The second part of digestion: the process by which pieces of food are chemically altered so that the body can absorb them.
alimentary canal The digestive tract. The sum of parts through which food actually passes.
vitamin A chemical substance the body needs in small amounts to stay healthy.
small intestine Organ in which most of the absorption of nutrients occurs.
stomach Organ in which the bolus is turned into chyme.
large intestine Converts waste into feces.
pancreas The organ which produces the sodium bicarbonate that helps to neutralize the stomach acid in the chyme.
liver Produces bile.
salivary glands Produce saliva.
tongue Moves food around the mouth to form the bolus.
epiglottis Covers the larynx when you swallow to make sure that food goes down the esophagus only.
vitamins C and B Water-soluble vitamins.
vitamins D and K Absorbed by the body even if they are not in any food that is eaten. Vitamin D can be made by the body through sunlight hitting the skin, and vitamin K is made by bacteria in the large intestine.
vitamins D, E and K Fat-soluble vitamins which build up easily in the body.
Created by: sallisea