Wednesday, March 21, 2012

EXAM FOCUS MCQ ON ABDOMEN-GIT(Pancreas)#2


PANCREAS(GROSS)

13. Pancreas is:
a. retroperitoneum
b.intraperitoneum
c.interperitoneum
d.All of the above
ANSWER: A
NOTE: Pancreas lies in posterior abdominal wall roughly in the transpyloric plane, Also the posterior surface of pancreas is not covered by peritoneum.

14. pancreas lies posterior to the stomach between:
a. the duodenum on the right and the spleen on the right
b. the duodenum on the right and the spleen on the left
c. the duodenum on the left and the spleen on the left
d. the duodenum on the left and the spleen on the right
ANSWER: B
NOTE: Its transversely crossing the bodies of the L1 and L2 vertebra.

15. The transverse mesocolon attaches to:
a.posterior margin of pancreas
b. superior margin of pancreas
c. Anterior margin of pancreas
d. All of the above
ANSWER: C
NOTE: The head of pancreas is covered anteriorly by the peritoneum of the greater sac except where its related to transvers colon. The neck and body is covered anteriorly by the peritoneum of lesser sac.

16. The head of the pancreas is the expanded part of the gland that is embraced by:
a. the C-shaped curve of the duodenum
b. horizontal part of the duodenum
c. body of stomach
d. hilum of the spleen
ANSWER: A
NOTE: The head of the pancreas is the expanded part of the gland that is embraced by the C-shaped curve of the duodenum to the right of the superior mesenteric vessels just inferior to the transpyloric plane.

17. Which of the following is not a relation of The Anterior surface of the head of pancreas:
a. pylorus of stomach
b. transverse colon
c. transverse mesocolon
ANSWER: A
NOTE: The pancreatic head rests anteriorly on the tranverse colon and mesocolon.

18. Which of the following is a relation of The Anterior surface of the neck of pancreas:
a. pylorus of stomach
b. transverse colon
c. transverse mesocolon
ANSWER: A
NOTE: The anterior surface of the neck, covered with peritoneum, is adjacent to the pylorus of the stomach.

19. Which of the following is a relation of The Anterior surface of the Body of pancreas:
a. pylorus of stomach
b. Body of stomach
c. transverse mesocolon
ANSWER: B
NOTE: The anterior surface of the body of the pancreas is covered with peritoneum and lies in the floor of the omental bursa and forms part of the stomach bed.

20. Which of the following is not a relation of The Posterior surface of the head of pancreas:
a.IVC
b. Right renal vessels
c. left renal vessels
d. common bile duct
ANSWER: C
NOTE: The pancreatic head rests posteriorly on the IVC, right renal artery and vein, and left renal vein. On its way to opening into the descending part of the duodenum, the bile duct lies in a groove on the posterosuperior surface of the head or is embedded in its substance.

21. Which of the following is a relation of The Posterior surface of the NECK of pancreas:
a.IVC
b. Right renal vessels
c. portal vein
d. common bile duct
ANSWER: C
NOTE: it overlies the superior mesenteric vessels, which form a groove in its posterior aspect.

22. Which of the following is not a relation of The Posterior surface of the body of pancreas:
a. Abdominal aorta
b. splenic vein
c. superior mesenteric vessels
d. left kidney
e. left crus of diaphragm
f. left supra renal gland
e. none of the above
ANSWER: E
NOTE: The posterior surface of the body is devoid of peritoneum and is in contact with the aorta, SMA, left suprarenal gland, left kidney, and renal vessels.

23. The tail of the pancreas lies anterior to:
A. Right kidney
b. left kidney
c. spleen
d. left supra renal gland
ANSWER: B
NOTE: it is closely related to the splenic hilum and the left colic flexure. The tail is relatively mobile and passes between the layers of the splenorenal ligament with the splenic vessels. It also lies against the hilum of the spleen.

24. what is the uncinate process
a. A hook-shaped projection from the lower aspect of the head of the pancreas that extend superiorly to the left and lies between the inferior mesenteric vessels and the aorta
b. A hook-shaped projection from the lower aspect of the head of the pancreas that extend superiorly to the left and lies between the inferior mesenteric vessels and the celiac trunk
c. A hook-shaped projection from the lower aspect of the head of the pancreas that extend superiorly to the left and lies between the superior mesenteric vessels and the celiac trunk
d. A hook-shaped projection from the lower aspect of the head of the pancreas that extend superiorly to the left and lies between the superior mesenteric vessels and the aorta
ANSWER: D
NOTE: The uncinate process, a projection from the inferior part of the pancreatic head, extends medially to the left, posterior to the SMA.

25. Which major vessels course along the pancreas:
a. splenic artery
b. SMV
c. IMV
d. none of the above
ANSWER: A
NOTE: As many as 10 branches may pass from the splenic artery to the body and tail of the pancreas.

26. Which of the following arteries/artery do not supply the head of pancreas:
a. The anterior and posterior superior pancreaticoduodenal arteries, branches of the gastroduodenal artery
b. the anterior and posterior inferior pancreaticoduodenal arteries, branches of the SMA
c. splenic artery
ANSWER: C
NOTE: Multiple pancreatic arteries form several arcades with pancreatic branches of the gastroduodenal and superior mesenteric arteries.


27. Which of the following arteries/artery do not supply the body and tail of pancreas:
a. splenic artery
b. the anterior and posterior inferior pancreaticoduodenal arteries, branches of the SMA
c. dorsal pancreatic artery
d. great pancreatic artery
ANSWER: B
NOTE: As many as 10 branches may pass from the splenic artery to the body and tail of the pancreas.

28. Which of the following structures is embraced between the neck and uncinate process of the pancreas:
a. Superior mesentric vein
b. Inferior mesentric vein
c. Portal vein
d. Bile duct
ANSWER: A
NOTE: The neck of the pancreas is short (1.5-2 cm) and overlies the superior mesenteric vessels, which form a groove in its posterior aspect.

29. The following statements concerning the pancreas are correct EXCEPT which:
a. The pancreas recieves part of its arterial supply from splenic artery
b. The main pancreatic duct opens into the third part of the duodenum
c. The uncinate process of the pancreas projects from the head of the pancreas
d. The common bile duct lies posterior to the head of the pancreas
e. The transverse mesocolon is attached to the anterior border of the pancreas
ANSWER: B
NOTE: The main pancreatic duct and bile duct usually unite to form the short, dilated hepatopancreatic ampulla (of Vater), which opens into the descending part of the duodenum at the summit of the major duodenal papilla.

30. The pancreas is a soft, lobulated exocrine/endocrine organ containing all of the following parts EXCEPT:
a) Head
b) Neck
c) Back
d) Body
e) Tail
ANSWER: C
NOTE: the pancreas is divided into four parts: head, neck, body, and tail

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