Cranial arteries are blood vessels that supply oxygen-rich blood to the brain and surrounding structures. They branch off from larger arteries, such as the common carotid artery and the vertebral artery, ensuring that the brain receives the necessary nutrients and oxygen for proper function. Key cranial arteries include the anterior cerebral artery, middle cerebral artery, and posterior cerebral artery. Each of these arteries serves specific regions of the brain, playing a crucial role in maintaining overall brain health and supporting various neurological functions. Proper blood flow through these arteries is essential for preventing conditions like stroke.