b) Circulation After Birth
"After birth, the lungs take on gas exchange", and the normal circulation begins with changes take place at birth and in the first postnatal months as follows:
a) The ductus arteriosus closes >> Ligamentum arteriosum
b) The oval foramen closes >> Foramen valve fuses with septum secundum to form solid interatrial septum
c) The umbilical vein closes >> Ligamentum teres hepatis
d) The ductus venosus closes >> Ligamentum venosum
e) The umbilical arteries close >> The medial umbilical ligaments
a) The ductus arteriosus closes >> Ligamentum arteriosum
b) The oval foramen closes >> Foramen valve fuses with septum secundum to form solid interatrial septum
c) The umbilical vein closes >> Ligamentum teres hepatis
d) The ductus venosus closes >> Ligamentum venosum
e) The umbilical arteries close >> The medial umbilical ligaments
@ Press on the picture to see related vedio