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Carotid

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• Carotid artery

  Carotid artery: Either of the two key arteries located in the front of the neck, through which blood from the heart goes to the brain. The right and left common carotid arteries are located on each side of the neck. Together, these arteries provide the principal blood supply to the head and neck. The left […]

• Carotid body

  Carotid body: A small “body” of tissue rich in capillaries, at the spot the carotid artery branches in the neck, containing cells that sense the oxygen and carbon dioxide levels in blood and from which messages are dispatched to the medulla (in the brain) to regulate the heart rate.

• Carotid endarterectomy

  Carotid endarterectomy: Endarterectomy (a surgical procedure designed to clean out material occluding an artery) done on the carotid artery (a major artery in the neck that supplies blood to the brain) to restore normal blood flow through it to the brain and prevent a stroke.

• Carotid stenosis

  Carotid stenosis: Abnormal narrowing of the carotid artery, often a preamble to a stroke.

• Carpal bone

  Carpal bone: One of the wrist bones. There are eight carpal bones that are arranged in two rows. The carpal bones articulate (come together to form a joint) proximally (on their near ends) with the long bones of the forearm — the radius and, indirectly, with the ulna — and distally (on their far ends) […]

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