Midgut Development & Rotation — Respiratory & Digestive Development

Midgut Development & Rotation MCQs: practice questions

Sample Midgut Development & Rotation multiple-choice questions from Respiratory & Digestive Development.

1. What is a Meckel diverticulum?

   • A. A persistent remnant of the vitelline duct
   • B. A persistent pancreatic bud
   • C. A persistent allantois
   • D. A persistent urachus
   • E. A persistent respiratory diverticulum

2. Where is intestinal duplication most commonly located according to the source?

   • A. Esophagus
   • B. Rectum
   • C. Near the ileocecal valve
   • D. Pylorus
   • E. Duodenum only

3. What is a Meckel diverticulum?

   • A. A persistent remnant of the vitelline duct
   • B. A persistent pancreatic bud
   • C. A persistent allantois
   • D. A persistent urachus
   • E. A persistent respiratory diverticulum

4. By approximately which week does the physiological umbilical herniation reduce?

   • A. Week 8
   • B. Week 7
   • C. Week 11
   • D. Week 9
   • E. Week 14

5. How does the cecum reach its usual adult location?

   • A. It ascends to the left upper quadrant
   • B. It rotates into the pelvis permanently
   • C. It becomes retroperitoneal in the left abdomen
   • D. It remains in the upper abdomen
   • E. It descends to the lower right abdomen

6. What is the embryologic origin of the epithelial lining of the midgut?

7. Which abdominal-wall defect is usually located to the right of the umbilical ring?

8. Around which vessel does the midgut rotate?

9. Which artery supplies the embryologic midgut derivatives?

10. What is characteristic of gastroschisis?

11. Which artery supplies the embryologic midgut derivatives?

12. What is the total degree of normal midgut rotation?

13. What embryonic process produces the physiological umbilical herniation of the midgut?

14. What is the total degree of normal midgut rotation?

15. By approximately which week does the physiological umbilical herniation reduce?

16. What is the embryologic basis of an ileoumbilical fistula?

17. Which abdominal-wall defect is usually located to the right of the umbilical ring?

18. What can result from abnormal fixation of the intestinal mesentery?

19. Around which week does physiological midgut herniation occur?

20. What condition results when the third portion of the duodenum is compressed between the SMA and aorta?

21. What is an omphalocele?

22. What structure forms from the cranial limb of the midgut loop?

23. Which intestinal region is commonly involved in ileocolic intussusception?

24. What is the embryologic origin of the smooth muscle of the intestinal wall?

25. What structure gives rise to the cecum and appendix?

26. What does a patent vitelline duct classically permit to discharge from the umbilicus?

27. What structure forms from the cranial limb of the midgut loop?

28. Which adult structure is derived from the proximal two-thirds of the transverse colon?

29. What is the embryologic basis of an ileoumbilical fistula?

30. How does the cecum reach its usual adult location?

31. Where is the cecum initially positioned after midgut rotation?

32. What is the embryologic origin of the smooth muscle of the intestinal wall?

33. What structure gives rise to the cecum and appendix?

34. What is duplication of the intestine associated with?

35. Around which vessel does the midgut rotate?

36. What structure forms from the caudal limb of the midgut loop?

37. Which intestinal region is commonly involved in ileocolic intussusception?

38. What embryonic process produces the physiological umbilical herniation of the midgut?

39. Where is intestinal duplication most commonly located according to the source?

40. What condition results when the third portion of the duodenum is compressed between the SMA and aorta?

41. Which event normally allows the midgut to return from the extraembryonic coelom?

42. What is the embryologic basis of intestinal malrotation?

43. What does a patent vitelline duct classically permit to discharge from the umbilicus?

44. Where is the cecum initially positioned after midgut rotation?

45. What can result from abnormal fixation of the intestinal mesentery?

46. What is duplication of the intestine associated with?

47. What is the embryologic basis of intestinal malrotation?

48. What is intussusception?

49. What is the embryologic origin of the epithelial lining of the midgut?

50. What is a common cause of superior mesenteric artery syndrome in the source?

51. Which event normally allows the midgut to return from the extraembryonic coelom?

52. What is characteristic of gastroschisis?

53. Which adult structure is derived from the proximal two-thirds of the transverse colon?

54. Which chromosomal abnormalities are commonly associated with omphalocele in the source?

55. What structure forms from the caudal limb of the midgut loop?

56. Around which week does physiological midgut herniation occur?

57. What is an omphalocele?

58. Which chromosomal abnormalities are commonly associated with omphalocele in the source?

59. What is intussusception?

60. What is a common cause of superior mesenteric artery syndrome in the source?