Anatomy
·Thorax & Spine
Great Vessels & Aortic Arch
⭐ PREMIUM
The aortic arch and its three branches, plus the SVC, dominate the superior mediastinum.
AORTIC ARCH
• Begins + ends at the sternal angle (T4/5); arches over the left main bronchus + pulmonary trunk.
• Three branches: brachiocephalic (→ right common carotid + right subclavian), left common carotid, left subclavian.
• Ligamentum arteriosum (remnant of ductus arteriosus) tethers the arch to the p…
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