20 Questions
What is the proximal segment of the right subclavian artery formed from?
Right fourth aortic arch
Which artery is formed as a bud from the common carotid artery?
External carotid artery
What does the distal part of the right subclavian artery lose connection with and eventually disappear?
Dorsal aorta
Which artery gives rise to the first part of the internal carotid arteries?
Common carotid artery
What does the sixth aortic arch develop into on the left side?
Left pulmonary artery and ductus arteriosus
What is the fate of the first aortic arch during development?
It becomes the maxillary artery
Which structure is formed from the third aortic arch during development?
Internal carotid artery
What does the remainder of the internal carotid artery derive from during development?
Dorsal aorta
The stapedial artery is the remaining portion of which aortic arch during development?
Second aortic arch
What does the fourth aortic arch form on the left side during development?
Arch of the aorta
What is the fate of the two ventral aortae during aortic arch development?
They fuse together to form the aortic sac.
What is the embryonic origin of the aortic arches?
Truncus arteriosus
How many pairs of arteries arise from contributions by the aortic sac during aortic arch development?
Five pairs
In the region of the aortic arches, what happens to the dorsal aortae?
They remain paired throughout.
Which structure terminates in the right and left dorsal aortae during development?
Aortic sac
What is the classical clinical sign of coarctation of the aorta?
Hypertension in the arms with normal blood pressure in the legs
Which defect involves the persistence of the right dorsal aorta between the origin of the seventh intersegmental artery and its junction with the left dorsal aorta?
Double aortic arch
In which condition does the left fourth arch and left dorsal aorta get obliterated and replaced by corresponding vessels on the right side?
Right sided aortic arch
What happens after the disappearance of the distal part of the sixth aortic arch in adults?
The right recurrent laryngeal nerve hooks around the right subclavian artery
Which structure hooks around the ligamentum arteriosum on the left side?
Left recurrent laryngeal nerve
Test your knowledge on the development, fate, and derivatives of the aortic arches, and their correlation with congenital anomalies. Explore the formation of the aortic sac and the pharyngeal arches in this quiz.
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