Illustration from the National Institute of Diabetes and Digestive and Kidney Diseases Health Information Center
digestive system : organ system that breaks down food and extracts nutrients from the food for use by the entire body
alimentary canal : the long tube in the body through which food passes after it is eaten
bile : a digestive juice secreted by the liver
carbohydrate : an essential component of living cells and source of energy
esophagus : the tube that leads from the mouth through the throat to the stomach
feces : solid wastes in the large intestine that are expelled from the body
gall bladder : the organ in the body in which bile from the liver is stored
liver : a large organ of the body that produces bile and cleans the blood
pancreas : a large gland of the body that is near the stomach and that produces insulin and other substances that help the body digest food
peristalsis : regular muscular contractions that move food through the digestive tract
salivary glands : a small organ that produces saliva in the mouth
small intestine : the long, narrow upper part of the intestine in which food is digested after it leaves the stomach
sphincter : a ring of muscle that aids in the one-way passage of food through the digestive tract
stomach : the sac-like organ in the body where food begins to be digested after eating
teeth : the set of hard, bony enamel-coated structures in the mouth used for biting and chewing
tongue : the soft, movable part in the mouth that is used for tasting and eating food and in human beings for speaking
Adapted from Human Body Systems by the National Science Resource Center, Vocabulary.com Systems of the Human Body by Tina S. and digestive system by Julie W., Body System Vocabulary Quizlet by tblaschke, and LearnersDictionary.com