In the fetal circulation

A The foramen ovale connects the two atria
B Most of the blood entering the right atrium goes to the left atrium
C The descending aorta contain more desaturated blood than ascending aorta
D The umbilical arteries contain oxygenated blood
E The fetal lung is bypassed by means of ductus venosus

Correct Answer: The foramen ovale connects the two atria, Most of the blood entering the right atrium goes to the left atrium, The descending aorta contain more desaturated blood than ascending aorta

Bissoy MCQ
#Basic Science #MS #Anatomy #Embryology #Fetal circulation

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Changes of fetal circulation at birth
A Cessation of placental blood flow
B Closure of umbilical arteries
C Closure of umbilical vein
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E Opening of foramen ovale
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A 10% blood enters into the lungs
B Umbilical vein drains in to the ductus venosus
C Functional closure of the ductus arteriosus occur by 24 hours
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E Pulmonary vascular resistance is low
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D Deoxygenated blood passes to right atrium
E Ductus venosus connect pulmonary artery with aorta
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