Term
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Definition
| 2/5 jejunum and 3/5 ileum, suspended from posterior abdominal wall by the mesentery of the small intestine, intraperitoneal |
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Term
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Definition
| begins at duodenjejunal flexure, has thicker and more numerous plicae circulares than the ileum |
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Term
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Definition
| ends at ileocecal junction, primary location for Peyer's patches |
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Term
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Definition
| guards the ileocecal junction, prevents retrograde movement of intestinal contents from large intestine back into small intestine |
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Term
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Definition
| first section of large intestine, intraperitoneal |
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Term
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Definition
| blind passage at the lower end of the cecum, intraperitoneal, suspended by a peritoneal ligament called the mesoappendix, lies retrocecal in 2/3 of the population |
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Term
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Definition
| visceral pain in the umbilical region, localized deep tenderness in the RLQ in the first 24 hours which may be absent if appendix is retrocecal |
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Term
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Definition
| ileocecal junction to hepatic flexure, secondarily retroperitoneal |
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Term
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Definition
| extends leftward across the abdomen from hepatic flexure to splenic flexure, intraperitoneal, suspended from the posterior abdominal wall by the transverse mesocolon |
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Term
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Definition
| descends from splenic flexure to the sigmoid colon, secondarily retroperitoneal |
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Term
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Definition
| S shaped course in LLQ from descending colon to rectum, intraperitoneal, suspended form posterior abdominal wall by the sigmoid mesocolon |
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Term
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Definition
| small masses of fat covered with peritoneum, scattered over exposed surfaces of each part of the colon |
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Term
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Definition
| three large, prominent longitudinal bands, converge at the base of the appendix |
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Term
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Definition
| sacculations produced by the circumferential gatherings of large intestine |
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Term
| inferior pancreaticoduodenal artery |
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Definition
| one of the first branches of the superior mesenteric artery, supplies the pancreas and the duodenum |
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Term
| jejunal and ileal branches |
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Definition
| 12-20 branches off the left side of the superior mesenteric artery, each ends by dividing into two branches and anastomose with adjacent branches to form arterial arcades |
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Term
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Definition
| formed by anastomoses of jejunal or ileal arteries, increase in number from proximal end of the jejunum(1) to distal end of the ileum(5-6) |
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Term
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Definition
| the branches from the terminal tier of arterial arches in each segment of the mesentary |
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Term
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Definition
| originates from right side of the superior mesenteric artery, bifurcates into left and right branches along transverse colon |
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Term
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Definition
| extends righward and bifurcates into ascending branch and descending branches, supplies mainly the ascending colon |
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Term
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Definition
| colic branch, ileal branch, anterior and posterior cecal arteries, appendicular artery |
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Term
| superior mesenteric artery |
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Definition
| arises from abdominal aorta directly behind the body of the pancreas, divides into inferior pancreaticoduodenal artery, middle colic artery, right colic artery, and ileocolic artery |
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Term
| inferior mesenteric artery |
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Definition
| arises from abdominal aorta, divides into left colic artery, sigmoid arteries, and superior rectal artery |
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Term
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Definition
| formed by the anastomoses, runs along the medial margins of the ascending and descending colon, and the mesenteric margins of the transverse and sigmoid colon |
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Term
| functionally inadequate anastomoses |
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Definition
| commonly found: near the ileocecal junction, or near the splenic flexure |
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Term
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Definition
| between the middle and lower third of the esophagus and the upper and lower halves of the anal canal, where some veins drain toward the portal vein and some drain toward the vena cava, may produce rupture in portal hypertension leading to esophageal varices |
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Term
| inferior mesenteric artery |
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Definition
| arises from abdominal aorta, branches into left colic artery, sigmoid arteries, and superior rectal artery (terminal extension) |
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