This MRA (magnetic resonance angiogram) shows the aortic arch and its branches.
Identify the following:
1. aortic arch
2. brachiocephalic (innominate) artery
3. right subclavian artery
4. right common carotid artery
5. left common carotid artery
6. left subclavian artery
7. carotid bifurcation
8. internal carotid artery
9. vertebral arteries
