Flashcards in abdomen 2 Deck (21):
- derived from dorsal mesentery
- hangs down like apron from greater curvature of stomach covering transverse colon and abdominal viscera
Why is the greater omentum referred to as the "abdominal policeman?"
- plugs the neck of a hernial sac, preventing entrance of coils of the small intestine
- wraps itself around inflamed organs preventing serious diffuse peritonitis
What ligaments are present in the greater omentum?
- gastrolineal (gastrosplenic)
- lienorenal (splenorenal)
mesentery of the small intenstine (mesentery proper)
- fan shaped double fold of peritoneum that suspends jejunum and ileum from posterior abdominal wall
- contains superior mesenteric and intestinal vessels, nerves, and lymphatics
- peritoneal reflection
lesser sac (omental bursa)
- irregular space that lies behind the liver, lesser omentum, stomach and upper anterior of greater omentum
- communicates with greater sac through epiploic foramen
what are the recesses presented in lesser sac of the peritoneal cavity?
- lies behind stomach, lesser omentum, and left lobe of liver
- lies behind the stomach, extending into layers of greater omentum
- extends to the left at the hilus of the spleen
what is the rectouterine pouch (of Douglas)?
- extends from the cervix of the uterus, along the side of the rectum, to the posterior pelvic wall (rectouterine fold)
What is the epiploic foramen?
- natural opening between lesser and greater sac
- bounded superiorly by peritoneum of liver and anteriorly by free edge lesser omentum
What are the retroperitoneal organs?
What are the components of the Portal Triad?
1. hepatic artery
2. portal vein
3. cystic duct (common bile duct)
What is located behind the portal triad?
- epiploic foramen in lesser sac
What structures does the superior mesenteric artery supply?
What structures does the inferior mesenteric artery supply?
- sigmoid colon, rectrum
What is the significance of the "bald spot" on the liver?
- no peritoneum covering
- abutts against diaphragm
- holds ligaments (anterior and posterior)
what is the rectrovesicle arch?
- pouch between bladder and rectum
ventral omentum (lesser omentum)
- attaches liver to stomach
What are the 4 parts of the duodenum?
3. Transverse - longest, crosses IVC, aorta, crossed anteriorly by superior mesenteric vessels