Digestive System

Digestive System - digestive system 1. there are two groups...

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digestive system 1. there are two groups of organs in the digestive system - what are they the alimnetary canal (GI tract) and the accessory digestive organs 2. what are the organs of the alimentary canal mouth, pharynx,esophagus, stomach, small intestine, and large intestine 3. what is the function of the alimentary canal to digest and absorb food 4. what are the accessory digestive organs teeth tongue gallbladder salivary glands liver and pancreas 5. the digestive process contain 6 activities - what are they 1. ingestion 2. propulsion a.deglutition b.peristalsis c.mass movements 3. mechanical digestion a.mastication b. churning c. segmentation 4. chemical digestion 5. absorption 6. defecation 6. desribe peristalsis Adjacent segments of alimentary tract organs alternately contract and relax, which moves food along the tract distally. 7. describe segmentation Nonadjacent segments of alimentary tract organs alternately contract and relax, moving the food forward then backward. Food mixing and slow food propulsion occurs. 8. what is deglutition swallowing 9. what is the Peritoneum serous membrane of the abdominal cavity 10. where is the Visceral peritoneum on external surface of most digestive organs 11. where is the Parietal peritoneum lines the body wall 12. where is the Peritoneal cavity and what is its function found Between the two peritoneums the Fluid lubricates mobile organs 13. what is the Mesentery and what is its function a double layer of peritoneum, Routes for blood vessels, lymphatics, and nerves it also Holds organs in place and stores fat 14. where are the Retroperitoneal organs found lie posterior to the peritoneum 15. Intraperitoneal (peritoneal) organs are
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surrounded by what the peritoneum 16. what are the Arteries of the splanchinic circulation • Hepatic, splenic, and left gastric • Inferior and superior mesenteric • Hepatic portal circulation 17. What is the function of the arteries of the splanchnic circulation • Drains nutrient-rich blood from digestive organs • Delivers it to the liver for processing 18. What are the four basic layers of the alimentary canal Four basic layers (tunics) • Mucosa • Submucosa • Muscularis externa • Serosa 19. the mucosa is found where Lines the lumen 20. what is the function of the mucosa Secretes mucus, digestive enzymes and hormones, Absorbs end products of digestion, and Protects against infectious disease 21. what are the sublayers of the mucosa Three sublayers: epithelium, lamina propria, and muscularis mucosae 22. where is Stratified squamous epithelium found the oral cavity, oropharynx, nasopharynx, esophagus, and anal canal 23. where is Simple columnar epithelium found, and what are some of its functions in the stomach, small intestine, large intestine,and rectum â€「 Goblet cells – secrete mucus â€「 Protects digestive organs from enzymes â€「 Eases food passage â€「 May secrete enzymes and hormones (e.g., in stomach and small intestine) 24.
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Digestive System - digestive system 1. there are two groups...

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