Embryologic Structures Flashcards
Becomes aortic arch/ R subclavian
4th arch of aortic arch
Becomes the internal carotid artery, common carotid
3rd arch of aortic arch
Becomes right and left pulmonary arteries and ductus arteriosus
6th arch of aortic arch
Becomes the coronary sinus
L Sinus horn
Becomes oblique vein
L common cardinal
Becomes posterior smooth portion of the RA
R sinus horn
Becomes SVC
R common cardinal
Becomes IVC
R Vitelline Vein
Becomes RAA
Right half of primitive atrium
Posterior smooth portion of LA
Proximal parts of pulmonary veins
Becomes LAA
Left half of primitive atrium
What happens to the left venous valve
fuses with the interatrial septum
What happens to the right venous valve (upper)
Forms the crista terminalis
What happens to the right venous valve (lower)
Forms the mouths of the IVC and CS
RVV tissue makes the
thespian and eustachian valve
Bulbus cordis becomes
RV, RVOT and truncus arteriosus
Primitive ventricle becomes
LV
Primitive atrium becomes
Common atrium
Sinus venosus becomes
Right and Left horns
Blood flow from the IVC
Eustacian valve, foramen ovale, LA, MV, LV, AO, tissues
Blood flow from the SVC
RA, RV, pulmonary trunk, ductus arteriosus, aorta
Ductus arteriosus
Ligamentum Arteriosum
Foramen ovale
Fossa Ovalis
Ductus venosus
Ligamentum Venosum
