Describe the foetal circulation and the changes that occur at birth.

[Click here to toggle visibility of the answers]

College Answer

This topic is well covered in standard texts and has been asked previously. Better answers 
displayed knowledge of the key concepts, such as the parallel circulations in the foetus and 
preferential flow of better oxygenated blood to the brain and upper limbs. 
Some candidates spent time on the maternal and placental circulations which were not 
required to answer the question asked.