The
internal carotid artery is major paired
artery, one on each side of the head and neck, in human anatomy. They arise from the
common carotid arteries where these bifurcate into the internal and
external carotid arteries; the internal carotid artery supplies the brain, while the external carotid nourishes other portions of the head, such as face, scalp, skull, and
meninges.