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Left Common Carotid Artery

Medically reviewed by: Stephanie Curreli, MD, PhD
Last Updated: Dec 15, 2016

The left common carotid artery is the artery that provides oxygen-rich blood to the left side of the neck and the head. Within the neck, the left common carotid artery extends out into the left external carotid artery and the left internal carotid artery.