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Unformatted text preview: 1. attaches mucosa to underlying muscle 2. submucosal plexus - autonomic innervation of muscle D. Muscularis- skeletal and smooth muscle 1. mouth, pharynx, upper esophagus - skeletal muscle 2. rest of GI tract - smooth muscle a. one layer - circular around GI b. second layer - longitudinal along GI 3. myenteric plexus - autonomic fibers to smooth muscle The Digestive System E. Serosa (peritoneum) - serous membrane around GI tract 1. parietal peritoneum- lines the wall of abdomen 2. visceral peritoneum- covers most of the organs 3. peritoneal cavity- between parietal & visceral a. ascites- fluid buildup in peritoneal cavity 4. retroperitoneal- kidneys & pancreas ("behind") 5. mesentery- sheetlike peritoneum a. attaches small intestine to the wall 6. falciform ligament- attaches liver to diaphragm 7. lesser omentum- attaches stomach/duodenum to liver 8. greater omentum (fatty layer) - over intestines a. many fat cells and lymph tissue...
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