Cardio Flashcards
USMLE
1
Q
Heart beats spontaneously at what week of development
A
4th week
2
Q
fetal structure of median umbilical ligament
A
allantois -> urachus
3
Q
embryonic structure: left horn of sinus venosus gives rise to
A
coronary sinus
4
Q
the remaining portion of the septum primum forms the
A
one-way valve of foramen ovale
5
Q
why does foramen ovale close after birth?
A
because of the increase in left atrial pressure and decrease in right atrial pressure
6
Q
A
