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Questions and Answers
Which artery does the second aortic arch give rise to?
Which artery does the second aortic arch give rise to?
- Splanchnic artery
- None - it regresses
- Stapedial artery (correct)
- Maxillary artery
The third aortic arch gives rise to which of the following?
The third aortic arch gives rise to which of the following?
- Common carotid arteries and proximal portion of the internal carotid arteries (correct)
- Common carotid arteries and distal portion of the internal carotid arteries
- Internal carotid arteries and proximal portion of the common carotid arteries
- Internal carotid arteries and distal portion of the common carotid arteries
The distal portions of the internal carotid arteries are formed by what?
The distal portions of the internal carotid arteries are formed by what?
- The third aortic arch
- The fourth aortic arch
- The cranial portions of the dorsal aorta (correct)
- The cranial portions of the proximal aorta
What does the fourth aortic arch give rise to?
What does the fourth aortic arch give rise to?
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What does the 6th pair of aortic arches give rise to?
What does the 6th pair of aortic arches give rise to?
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Study Notes
Aortic Arch Development
- The second aortic arch gives rise to the stapedial artery.
- The third aortic arch gives rise to the common carotid artery and the proximal part of the internal carotid artery.
- The distal portions of the internal carotid arteries are formed by the dorsal aorta.
- The fourth aortic arch gives rise to the right subclavian artery and the aortic arch on the left side.
- The sixth pair of aortic arches give rise to the pulmonary arteries and the ductus arteriosus.
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