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bio256 Anatomy and physiology 4 Chamberlain University

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Chamberlain University

bio256 Anatomy and physiology 4 Chamberlain University

1. The layer that contracts to churn food or move food along. ​Muscularis 2. Layer consisting of a membrane that lines a body cavity that opens to the exterior; overlays smooth muscle. ​Mucosa 3. Areolar connective tissue layer located deep to the mucosa. ​Submucosa 4. A serous membrane that is the external layer of a GI tract organ. ​Serosa B. Gastrointestinal Tract Organs Write the name of the term that is described. 1. Its only function is propulsion. ​Esophagus 2. A continuous digestive tube from the mouth to the anus. ​Alimentary Canal 3. Conducts both air and food. ​Pharynx 4. Primary site of nutrient absorption; is composed of 3 sections. ​Small Intestine 5. Section of small intestine that receives bile, pancreatic secretions, and food from the stomach. ​Duodenum 6. Churns food and begins protein digestion. ​Stomach 7. Has two sphincters that control elimination of feces from the body. ​Anus 8. Has regions called the cardia, fundus, body, and pylorus. ​Stomach 9. Has regions called the cecum, colon, rectum, and anal canal. ​Large Intestine 10.Receives secretions from salivary glands; mastication occurs here. ​Mouth
C. Gastrointestinal Tract Organs and Associated Structures Write the name of the organ that is described. 1. Finger-like extensions increasing surface area in the small intestine. ​Villi 2. Folds in the gastric mucosa. ​Rugae 3. Permanent deep ridges in the small intestine mucosa. ​Circular Folds 4. Sphincter valve between the stomach and duodenum. ​Pyloric Sphincter 5. Serous membrane that lines the abdominal wall. ​Parietal Peritoneum 6. Serous membrane that covers the abdominal organs. ​Visceral Peritoneum 7. Sphincter that connects the small and large intestine. ​Ileocecal Sphincter 8. Fluid that begins digestion of carbohydrates. ​Saliva 9. Bony plate between the mouth and nose. ​Hard Palate 10.Forms a brush border; extension of epithelial cell plasma membrane. ​Microvilli 11.Keeps food and fluids from going up into the nasopharynx. ​Uvula 12.Area between the lips and teeth. ​Gums



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