1 — Right common carotid artery; 2 — Right subclavian artery; 3 — Brachiocephalic trunk; 4 — Thyroid ima artery; 5 — Left inferior thyroid artery; 6 — Left thyrocervical trunk; 7 — Left subclavian artery; 8 — Arch of aorta; Aortic arch; 9 — Superior thyroid artery; 10 — External carotid artery; 11 — Left common carotid artery