<Ul> <Li> Internal carotid arteries : These large arteries are the medial branches of the common carotid arteries in the neck which enter the skull , as opposed to the external carotid branches which supply the facial tissues . The internal carotid artery branches into the anterior cerebral artery and continues to form the middle cerebral artery </Li> <Li> Anterior cerebral artery ( ACA ) <Ul> <Li> Anterior communicating artery : Connects both anterior cerebral arteries , within and along the floor of the cerebral vault . </Li> </Ul> </Li> <Li> Middle cerebral artery ( MCA ) </Li> </Ul>
4 arteries that supply blood to the brain
Internal carotid arteries Anterior cerebral artery Anterior communicating artery Middle cerebral artery