Obstetrics and Gynaecology

at a Glance

Fourth EditionErrol R. Norwitz, John O. Schorge

Multiple Choice

Question 1.All of the following are changes that occur to the fetal circulation within minutes of birth EXCEPT for which?

A Constriction of the umbilical vessels
B Constriction of the ductus venosus
C Constriction of the ductus arteriosus
D Constriction of the hepatic portal sinus
E Closure of the foramen ovale