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Jairo Jimenez

Study Stack #2

TermDefinition
Digestive System Major organ system that breaks down food into nutrients that can be used by the body's cells
Organs of the Gastrointestinal Tract Mouth, Pharynx, Esophagus, Stomach, Small Intestine, & Large Intestine
Gastrointestinal Tract (GI) The muscular digestive tube that winds through the body, extending from the mouth to the anus
Peristalsis Means of propulsion through the alimentary canal; waves of contraction and relaxation of smooth muscle in organ walls
Ingestion Taking of food into the mouth
Absorption Transport of digested end products from the lumen of the alimentary canal into the blood and lymphatic capillaries located in the wall of the canal
Defecation Elimination of indigestible substances from the body as feces
Mucosa Inner most layer of the GI tract wall
Submucosa A layer of connective tissue containing major blood and lymphatic vessels and nerve fibers that stimulate the digestive tract
Rugae Folds in the stomach which increase surface area and allow for stomach expansion
Villi Small finger-shaped structures that cover the inner surface of the small intestine and provide a large surface area through which digested food is absorbed
Microvilli Hair like projections on the surface of the villi that increase the surface area
Created by: user-1991670
 

 



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