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Questions and Answers
What is the proximal segment of the right subclavian artery formed from?
What is the proximal segment of the right subclavian artery formed from?
- Stapedial artery
- Right fourth aortic arch (correct)
- Maxillary artery
- Right seventh intersegmental artery
Which artery is formed as a bud from the common carotid artery?
Which artery is formed as a bud from the common carotid artery?
- Maxillary artery
- Stapedial artery
- Right subclavian artery
- External carotid artery (correct)
What does the distal part of the right subclavian artery lose connection with and eventually disappear?
What does the distal part of the right subclavian artery lose connection with and eventually disappear?
- Common carotid artery
- Left pulmonary artery
- Dorsal aorta (correct)
- Right seventh intersegmental artery
Which artery gives rise to the first part of the internal carotid arteries?
Which artery gives rise to the first part of the internal carotid arteries?
What does the sixth aortic arch develop into on the left side?
What does the sixth aortic arch develop into on the left side?
What is the fate of the first aortic arch during development?
What is the fate of the first aortic arch during development?
Which structure is formed from the third aortic arch during development?
Which structure is formed from the third aortic arch during development?
What does the remainder of the internal carotid artery derive from during development?
What does the remainder of the internal carotid artery derive from during development?
The stapedial artery is the remaining portion of which aortic arch during development?
The stapedial artery is the remaining portion of which aortic arch during development?
What does the fourth aortic arch form on the left side during development?
What does the fourth aortic arch form on the left side during development?
What is the fate of the two ventral aortae during aortic arch development?
What is the fate of the two ventral aortae during aortic arch development?
What is the embryonic origin of the aortic arches?
What is the embryonic origin of the aortic arches?
How many pairs of arteries arise from contributions by the aortic sac during aortic arch development?
How many pairs of arteries arise from contributions by the aortic sac during aortic arch development?
In the region of the aortic arches, what happens to the dorsal aortae?
In the region of the aortic arches, what happens to the dorsal aortae?
Which structure terminates in the right and left dorsal aortae during development?
Which structure terminates in the right and left dorsal aortae during development?
What is the classical clinical sign of coarctation of the aorta?
What is the classical clinical sign of coarctation of the aorta?
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?
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?
In which condition does the left fourth arch and left dorsal aorta get obliterated and replaced by corresponding vessels on the right side?
In which condition does the left fourth arch and left dorsal aorta get obliterated and replaced by corresponding vessels on the right side?
What happens after the disappearance of the distal part of the sixth aortic arch in adults?
What happens after the disappearance of the distal part of the sixth aortic arch in adults?
Which structure hooks around the ligamentum arteriosum on the left side?
Which structure hooks around the ligamentum arteriosum on the left side?
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