The fetal development includes which of the following features?

Ductus arteriosus

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Foramen ovale

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Fetal hemoglobin with a higher affinity for oxygen than adult hemoglobin

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A and C

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A, B and C

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Solution

The correct option is E A, B and C
In developing foetus, Ductus arteriosus is a blood vessel which connects pulmonary artery to the proximal descending aorta. Foramen ovale is the opening present in foetal heart that allows blood flow from right atrium to left atrium. Foetal haemoglobin shows higher affinity for oxygen as compare to adult. Thus option E is the correct answer.

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