Anatomy Embryology  Circulatory
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 Which embryonic structure is a derivative of the Aorta
 Truncus Arteriosus
 Which embryonic structure is a derivative of the Pulmonary Trunk
 Truncus Arteriosus
 Which embryonic structure is a derivative of the Smooth part of R. ventricle (aka: conus arteriosus)
 Bulbus Cordis
 Which embryonic structure is a derivative of the Smooth part of left ventricle (aortic vestibule)
 Bulbus Cordis
 Which embryonic structure is a derivative of the Trabeculated part of right ventricle
 Primitive ventricle
 Which embryonic structure is a derivative of the Trabeculated part of left ventricle
 Primitive ventricle
 Which embryonic structure is a derivative of the Trabeculated part of right atrium
 Primitive Atrium
 Which embryonic structure is a derivative of the Trabeculated part of left atrium
 Primitive Atrium
 Which embryonic structure is a derivative of the Smooth part of right atrium (sinus venarum)
 Sinus Venosus
 Which embryonic structure is a derivative of the Coronary sinus
 Sinus Venosus
 Which embryonic structure is a derivative of the Oblique vein of left atrium
 Sinus venosus
 Which aortic arches Regress in humans
 1st ,2nd , and 5th Aortic Arch
 Which embryonic structure is a derivative of the Common Carotid arteries
 3rd Aortic Arch
 Which embryonic structure is a derivative of the Internal Carotid arteries (proximal part)
 3rd Aortic Arch
 Which embryonic structure is a derivative of the Right subclavian artery (proximal part)
 4th Aortic Arch
 Which embryonic structure is a derivative of the Part of the aortic arch
 4th Aortic Arch
 Which embryonic structure is a derivative of the Pulmonary arteries (proximal part)
 6th Aortic Arch

1. Which embryonic structure is a derivative of the Ductus arteriosus**
2. What is remnant of the ductus arteriosus after birth?
3. What was the function of the ductus arteriosus? 
1. 6th Aortic Arch
2. Ligamentum arteriosusm
3. In a fetus, this structure shunts blood from the pulmonary arteries to the aorta and thus bypass the lungs  Which embryonic structure is a derivative of the Arteries to upper and lower extremities
 Posterolateral branches of the Dorsal Aorta (DA)
 Which embryonic structure is a derivative of the Intercostal, lumbar, and lateral sacral arteries
 Posterolateral branches of the Dorsal Aorta (DA)
 Which embryonic structure is a derivative of the Renal, suprarenal, and gonadal arteries
 Lateral branches of the DA
 Which embryonic structure is a derivative of the Celiac, superior mesenteric, and inferior mesenteric arteries
 Vitelline arteries (VA) (Ventral branches of the Dorsal aorta)

1. Which embryonic structure is a derivative of the Part of the internal iliac arteries, superior vesical arteries, medial umbilical (fold) ligaments
2. What the is the median umbilical ligament a remnant of? 
1. Umbilical arteries (UA)  (Ventral branches of the Dorsal aorta)
2. The Urachus 
1. Which embryonic structure is a derivative of the Hepatic veins and sinusoids, ductus venosus, part of the IVC, portal vein, superior mesenteric vein, inferior mesenteric vein, and splenic vein?
2. What is ligamentum venousum a remnant of? < 
1. Vitelline Veins R & L
2. Ductus venosus
3. In the fetus, ductus venosus shunts blood from the umbilical vein directly to the inferior vena cava (allowing oxygenated blood from the placenta to bypass the liver.  Which umbilical veins (right of left)regress early in development?
 Right Umbilical Veins
 Which embryonic structure is a derivative of the Ligamentum teres
 Left Umbilical Veins
 Which embryonic structure is a derivative of the Internal jugular veins, SVC, part of the IVC, common iliac veins, renal veins, gonadal veins, intercostals veins, hemiazygos vein, and azygos vein
 Cardinal Veins