What do the left common carotid, brachiocephalic artery, and left subclavian all have in common?

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These arteries all branch from the aortic arch, which is a major artery that comes directly from the heart and is part of the systemic circulation, distributing oxygenated blood to the body. The left common carotid and the left subclavian arteries directly branch from the aortic arch, while the brachiocephalic artery is a single vessel that branches off the aortic arch and then splits into the right subclavian and the right common carotid arteries.

What Do the Left Common Carotid, Brachiocephalic Artery, and Left