2-Gut + Periotoneal Cavity

Question 1

What is the peritoneum

Answer 1

Epithelium lining the abdominal cavity

Visceral and parietal layers - between them is the peritoneal cavity

Question 2

The foregut contains

Answer 2

Intraabdominal oesophagus, stomach and duodenum up the 2nd (descending) part of the duodenum - ampulla of Vater

Question 3

The midgut contains

Answer 3

2nd part of the duodenum, jejunum, ileum, caecum, appendix, ascending colon, transverse colon up to the splenic flexure

Question 4

The hundgut contains

Answer 4

Splenic flexure, descending colon, sigmoid, rectum

Question 5

What has a dorsal and ventral mesentery

Answer 5

Dorsal - all 3 regions

Ventral - foregut only

Question 6

Vertebral level of coeliac trunk?

Answer 6

T12

Question 7

Vertebral level of SMA?

Answer 7

L1

Question 8

Vertebral level of IMA?

Answer 8

L3

Question 9

Branches of the superior mesenteric artery?

Answer 9

Middle colic, Right colic, Ileocolic, Jejunal, Ileal arteries

Question 10

Branches of the inferior mesenteric artery?

Answer 10

Left colic, sigmoid, superior rectal

Question 11

What forms the hepatic portal vein?

Answer 11

Splenic vein is joined by the IMV, posterior to the body of the pancreas at L2
Splenic vein then joined by the SMV posterior to the neck of the pancreas at L2

Question 12

Tributaries of the splenic vein?

Answer 12

IMV, Short gastric veins, left gastro-omental vein, pancreatic veins

Question 13

Tributaries of the SMV?

Answer 13

Jejunal, ileal, ileocolic, right colic, middle colic. Right gastro-omental vein, anterior + posterior inferior pancreaticoduodenal veins

Question 14

Tributaries of the IMV?

Answer 14

Begins as the superior rectal vein, receives tributaries from the sigmoid veins, left colic vein