Embryology Flashcards
1
Q
Truncus Arteriosus
A
Proximal aorta and proximal pulmonary aorta
2
Q
Primitive ventricle
A
Right and left ventricles trabeculated parts
3
Q
Sinus venosus
A
Smooth part of right atrium, coronary sinus and oblique vein
4
Q
Bulbous cordis
A
Smooth parts of right ventricle and part of left ventricle
5
Q
Primitive atrium
A
Right and left atria
6
Q
First arch
A
Maxillary and external carotid artery
7
Q
Second arch
A
Stapedial and hyoid aa
8
Q
Third arch
A
Carotid aa and proximal internal carotid aa
9
Q
Fourth arch
A
Left side forms the aortic arch; right side forms the innominate/subclavian
10
Q
Fifth arch
A
Rudimentary
11
Q
Sixth arch
A
Proximal portions develop into RPA and LPA
Distal left forms the ductus arteriosus
