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Common Carotid arteries are blood vessels. These arteries are responsible for taking blood away from the heart to the brain. The right common carotid branches off from the brachiocephalic artery. It extends up the right side of the neck to deliver blood to that side of the head. The left artery branches away from the aorta. It travels up the left side of the neck to deliver blood to that side of the head. Each of the carotid branches out and develops internal and external vessels to the top of the thyroid. The arteries are different lengths and where they begin and stop in the body. The right artery is limited to the neck. The left breaks off from the highest portion of the aorta and travels up to the left sternoclavicular joint.
"The cervical portions of the common carotids resemble each other so closely that one description will apply to both.
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