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CCI Exam Updated Questions and Answers (Verified Answers) 1.At what time during fetal growth is the heart first fully developed?A.20 days B.30 days C.40 days D.50 days ANS C 2.On the 30th day, the truncus normally divides. What anomaly occurs if the truncus does not divide?A.A-V canal B.muscular VSD C.transposition of the great vessels D.truncus arteriosus ANS D 3.The sinus venosus forms all of the following EXCEPT A.coronary sinus B.pulmonary arteries 1 / 3
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C.right atrium D.inferior vena cava ANS B 4.The truncus arteriosus forms all of the following EXCEPT ANS A.pulmonary veins B.carotid artery C.pulmonary arteries D.ductus arteriosus ANS A 5.What are the two right-to-left shunts in the normal fetal circulation?A.ductus arteriosus and primum ASD B.VSD and ASD C.foramen ovale and ductus arteriosus D.foramen ovale and VSD ANS C 6.Which of the following left-to-right shunts is the last to close in the normal post-partum period? When does it close?A.patent ductus arteriosus, closes in the 7th day 2 / 3
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B.patent foramen ovale, closes in the 2nd day C.patent ductus arteriosus, closes in the 14th day D.patent foramen ovale, close at the end of the first week ANS D 7.In the normal fetal circulation, which of the following has the least amount of blood flow?A.patent foramen ovale B.ductus arteriosus C.aorta D.pulmonary veins ANS D
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