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Questions and Answers
Which artery is the largest and most anterior branch of the arch of aorta?
Which artery is the largest and most anterior branch of the arch of aorta?
- Left Subclavian artery
- Right costal cartilage artery
- Left Common carotid artery
- Brachiocephalic Trunk/ Innominate artery (correct)
Where does the thoracic portion of the left common carotid artery ascend from?
Where does the thoracic portion of the left common carotid artery ascend from?
- Left sternoclavicular joint
- Inferior mediastinum
- Arch of aorta (correct)
- Superior mediastinum
At what level does the left subclavian artery spring from the arch of aorta?
At what level does the left subclavian artery spring from the arch of aorta?
- 2nd right costal cartilage
- Left sternoclavicular joint
- 3rd and 4th thoracic vertebra (correct)
- Superior mediastinum
Which artery arises from the arch of aorta at the level of the upper border of the 2nd right costal cartilage?
Which artery arises from the arch of aorta at the level of the upper border of the 2nd right costal cartilage?
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Study Notes
Aortic Arch Branches
- The largest and most anterior branch of the arch of the aorta is the innominate artery (brachiocephalic trunk).
Left Common Carotid Artery
- The thoracic portion of the left common carotid artery ascends from the aortic arch directly.
Left Subclavian Artery
- The left subclavian artery springs from the arch of the aorta at approximately the level of the T3 vertebra.
Right Common Carotid Artery
- The right common carotid artery arises from the arch of the aorta at the level of the upper border of the 2nd right costal cartilage.
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