what is the major artery and vein that deliver and drain blood to and from the head along the spinal cord?
Carotid
The carotid arteries (paired) supply the head and neck with oxygen rich blood.
The vena cava brings deoxygenated blood (blood whose oxygen has been used by the body) back to the heart. The vena cava empties into the right atrium. The inferior vena cava (IVC) comes from below...
The carotid arteries carry oxygenated blood from the heart to the head.
The Carotid Artery.
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