Embryology Practice Questions With Answers Already Passed

85. In the development of the midgut: A. the superior mesenteric artery is the axis for clockwise rotation of the midgut loop B. the persistence of part of the vitelline duct leads to urachal fistala C. a vitelline cyst may result from abnormal remodeling of the vitelline veins D. an omphalocele is not synonymous with congenital umbilical hernia {Ans: D. is correct. The midgut rotates in a counterclockwise direction around superior mesenteric artery. Persistence of the vitelline duct may cause a vitelline fistula or cyst. Omphalocele results from a failure of midgut to return to the abdominal cavity, while congenital umbilical hernia is a later herniation of gut through abdominal wall.}112. Of the following, the item most closely associated with the pons is: A. telencephalon B. diencephalon C. mesencephalon D. metencephalon E. myelencephalon {Ans: D. is correct. The metencephalon differentiates into the cerebellum, the coordination center for posture and movement and the pons, which serves as a neural relay center.}26. When the amount of amniotic fluid exceeds two liters, the condition is called: A. oligohydramnios B. polyhydramnios or hydramnios C. amniotitis D. bag of waters E. hydrogravida {Ans: B. is correct. Polyhydramnios is a condition of excess