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Digestive System

Ch. 18

QuestionAnswer
Digestion process that breaks down food into small molecules so that it can be used by the cells.
Mechanical Digestion takes place when food is chewed, mixed and churned. (in mouth & stomach)
Chemical Digestion occurs when large food molecules are broken down into smaller particles.
Enzymes a type of protein that speeds up the rate of chemical reactions in the body.
Pancreas organ near the stomach that adds enzymes to the small intestine
Saliva moistens the food so it can be swallowed easier
Esophagus tube that connects the mouth and the stomach.
Peristalsis waves of muscle contractions that squeezes the food through the digestive tract.
Stomach muscular organ that breaks down food both mechanically and chemically.
Chyme food that has become a thin, watery liquid.
Small Intestine long organ where the food is absorbed into the bloodstream
Villi fingerlike projections of the small intestine that allows more chyme to be absorbed.
Large Intestine long organ that absorbs water from the digested food.
Rectum the last section of the large intestine that holds the waste until it is eliminated.
Feces semisolid waste that will leave the body after nutrients are absorbed.
Liver makes bile to help break down food in the small intestine
Gall Bladder stores bile that is made in the liver.
Created by: hubblep
 

 



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