30 Questions
Which arteries contribute to the maxillary arteries in the head?
Arch 1
Which arteries form the common carotid arteries?
Arch 3
Which arteries form the proximal part of the right subclavian artery and the arch of the aorta?
Arch 4
Which arteries form the pulmonary arteries?
Arch 6
Which arteries form part of the right subclavian artery?
7th intersegmental branch
Which arteries form part of the left subclavian artery?
7th intersegmental branch
Which artery connects arches 3 and 4 on the right side?
Aortic sac
Which nerves wrap around the 6th aortic arch arteries?
Recurrent laryngeal nerves
What happens in coarctation of the aorta?
Narrowing of the aorta around the ligamentum arteriosum
What does the ductus venosus do?
Allows the umbilical vein to partially bypass the liver
Which structures give rise to major arterial structures around the heart during embryonic development?
Dorsal aortae
What is the expanded region of the embryonic aorta that receives blood from the truncus arteriosus and transmits it through the aortic arch arteries called?
Aortic sac
When do the aortic arch arteries develop in the neck?
Week 4
What are the aortic arch arteries also called?
Pharyngeal arch arteries
What structures receive blood from the aortic arch arteries and fuse caudally to form a single dorsal aorta?
Dorsal aortae
What is the fate of the major sinus venosus tributaries during embryonic development?
They regress
What is a congenital defect of the arterial system that involves the persistence of a connection between the aorta and the pulmonary artery?
Patent ductus arteriosus
What is a congenital defect of the arterial system that involves narrowing of the aorta, usually near the insertion of the ductus arteriosus?
Coarctation of the aorta
What is a congenital defect of the venous system that involves the absence of the inferior vena cava?
Absent inferior vena cava
What is a congenital defect of the venous system that involves the presence of an additional superior vena cava on the left side of the heart?
Left superior vena cava
Which vein becomes the superior vena cava?
Right common cardinal vein
Which vein drains the tissues of the cephalic region?
Anterior cardinal vein
Which vein drains the kidneys and abdominal wall?
Subcardinal veins
Which vein drains the lower limbs?
Sacrocardinal veins
What happens when the left sacrocardinal veins persist?
Forms a left-sided IVC that drains into the left renal vein
What happens when the subcardinal veins anastomose with supracardinal veins instead of the IVC?
Forms an absent inferior vena cava
What happens when the left common cardinal vein persists?
Forms a left-sided SVC that drains into the coronary sinus
What happens when both common cardinal veins persist?
Forms a double superior vena cava
What is the path of oxygen-rich circulation in fetal circulation?
Placenta > umbilical vein > ductus venosus > IVC > right atrium > foramen ovale > left atrium > left ventricle > aorta
What is the path of oxygen-poor circulation in fetal circulation?
Head/brain > superior vena cava > right atrium > right ventricle > pulmonary trunk > ductus arteriosus > aorta
Test your knowledge on fetal and neonatal circulation with this quiz. Learn about the embryonic development of the arterial system and the differences between prenatal and postnatal circulation. Explore congenital defects related to circulation.
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