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SBGR Digestive

SBGR ALH 165 Digestive System (2012 LS)

Mesentery Double sheet of peritoneal membrane
Mucosa Inner lining of digestive tract
Submucosa Layer of dense irregular connective tissue that surrounds the mucosa
Muscularis externa Plays an essential role in mechanical processing and in moving materials along the digestive tract
Circular folds Permanent transverse folds in the intestinal lining
Villi Small mucosal projections that stick into the lumen of the small intestine
Submucosal plexus A nerve network that contains sensory neurons, parasympathetic ganglionic neurons and sympathetic postganglionic fibers that innervate the mucosa and submucosa
Bolus Moist compact mass of food
Peristalsis Propulsion of food through the digestive tract by contractions
Stomach Organ performing chemical breakdown of food by acid and enzymes
Oral cavity Mechanical processing, moistening, mixing food with saliva
Pharynx throat
Esophagus Transports of swallowed food to the stomach
Small intestine Does enzymatic digestion and absorption of water, organic substrates, vitamins and ions
Large intestine Performs dehydration and compaction of indigestible materials in preparation for elimination
Ingestion Food and liquids enter the digestive tract through the mouth
Digestion Chemical and enzymatic breakdown of food in to small organic molecules that can be absorbed
Feces Compacted material
Defecation Elimination of feces from the body
Uvula Dangling process the helps prevent food from entering the pharynx prematurely
Vestibule Space between the cheeks and the teeth
Lingual frenulum Attaches the body of the tongue to the floor of the oral cavity
Gingivae Gums
Labia Lips
Tongue Manipulates food inside the mouth
Barium sulfate
Created by: SBGrandRapids