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| XY-QH 3329-5 Small Intestine Structure Model Small intestine structure model 1. Use: The specimen is suitable for the intuitive model used by middle and high school medical students to study the structure of small intestine. 2. Product features: 1, the product should include small intestine (duodenum, jejunum and ileum), large intestine (colon, cecum), appendix, pancreas and pancreatic duct, common bile duct, etc. 2. Small intestine: upper pylorus, lower cecum. Within the box formed by the colon, the center and lower part of the abdominal cavity are curved. 3. Duodenum: The beginning of the small intestine, close to the abdominal wall in a "C" shape around the pancreatic head. The upper mucosa attached to the pylorus (duodenal bulb) is flat without folds, the right side of the descending part is close to the head of the pancreas, and the mucous membrane on the posterior medial wall is the duodenal papilla, and the descending part should be profiled to show the common opening of the common common bile duct and pancreatic duct. The lower part migrates to the jejunum. 4. Jejunum and ileum: The jejunum starts from the duodenum, and the ileum ends with the cecum, accounting for most of the small intestine. The jejunum is located in the left upper abdomen, and the ileum is located in the right lower abdomen, with no obvious boundary. 5. The junction of duodenum and jejunum, the junction of ileum and cecum can be severed and disassembled. 6. Cecum: It is the starting point of the large intestine, connected with the ileum and ascending to the colon, in the shape of a protruding-downward pouch. The end of the ileum protrudates into the cecum, and the upper and lower lip-shaped ileocecal valves are formed in the wall of the cecum. The cecum is profiled to show the internal structure and can be disassembled. 7. The colon should show three longitudinal bands on the surface, cysticele, and fat protrusions of varying sizes. The transverse colon is truncated at the left and right curvature of the colon. It can be disassembled. 8, the product should be colored according to the standard, the section installation bolt should be tight and firm. |
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