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Download D170 Applied Human Anatomy Winter 2015 Dr
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Digestive System Things to be good at: 1. Identify and describe the locations of digestive organs and mesenteries in the abdominopelvic cavity 2. Describe the gross anatomy and functions of the organs of the alimentary canal 3. Compare and contrast the microscopic anatomy of regions of the alimentary canal 4. Describe the gross anatomy and functions of the liver, gallbladder, and pancreas Divisions of the Abdomen In the following image, sketch the dividers of the abdomen, label all nine, and sketch the following organs: Liver Stomach Small intestine Large intestine Cavities and Mesenteries 1. Define and indicate the visceral peritoneum, the parietal peritonuem, and the peritoneal cavity. 2. Where are the two mesentaries considered ventral: falciform ligament and lesser omentum? 3. Where are the greater omentum, transverse mesocolon? Sigmoid mesocolon is what area? More Mesenteries Now, transfer your knowledge to these diagrams: D E A F G B C H Which statement is true? A. The entire small intestine is enclosed in the peritoneal cavity B. More organs are connected by ventral mesenteries than by dorsal mesenteries C. The liver is secondarily retroperitoneal D. Mesenteries contain both blood vessels and nerves Mouth to Anus Draw a simple tube, and label: 1. What organs does food pass through? 2. What are the main substructures in each organ? 3. What sphincters / valves does food pass through? 4. Name the main functions of each organ? mouth anus What did you remember? Mouth and Pharynx Stomach Small Intestine Large Intestine What is the correct order of movement of food that has reached the cecum? A. cardiac sphincter, duodenum, jejunum, ileum, ileocecal valve B. pyloric sphincter, duodenum, jejunum, ileum, ileocecal valve C. ileocecal valve, duodenum, jejunum, ileum, pyloric sphincter D. pyloric sphincter, jejunum, duodenum, ileum, ileocecal valve E. pyloric sphincter, duodenum, jejunum, ileum, internal anal sphincter Epithelium of the Digestive Tract Match the following tissues to the correct organ: Organ Tissue A. Esophagus B. Stomach C. Small intestine D. Large intestine 1. 2. 3. 4. 5. 6. 7. 8. Mucosa secretes bicarbonate-buffered mucus Colonocytes absorb water and ions Lowest surface area Submucosa contains lubricating mucus glands Contains circular folds and villi Contains undifferentiated epithelial/stem cells Uses enterocytes to absorb nutrients Gastric pits produce hydrochloric acid Accessory Ducts
