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Arteries of the Neck and Head

...  the right arm as well as the head and neck. This is done through an artery branch called the right vertebral artery. The vertebral arteries that are on the left and right, in turn, go into the basilar artery and then upward to the posterior cerebral artery. This provides most of the oxygenated blood to the brain. Both the posterior communicating artery and the posterior cerebral artery can  ...

Blood Supply to the Brain

...  This is an opening at the base of the skull where the spinal cord merges with the brain region of the medulla oblongata. The arteries are conjoined once they have penetrated the cranium to form the basilar artery. This artery, in turn, serves as the seed where two posterior cerebral arteries are created. The new set of arteries now takes charge of transporting the blood supply to the surface of  ...