Cerebral Arterial Circle (Circle of Willis )

Posterior Cerebral Artery

Supplies the posterior portion of the cerebrum.

Basilar artery

Vertebral arteries enter the skull through the foramen magnum and merge to form the basilar artery.

Anterior cerebral artery

Vessel in the cerebral arterial circle (circle of willis)

Middle Cerebral artery

Vessel in the cerebral arterial circle (circle of willis)

Anterior Communicating Artery

connect two anterior cerbral arteries.

Internal carotid artery

extends through the carotid canal of the temporal bone.

Vertebral artery

travels through the transverse foramina of the cervical vertebrae and enters the skull through the foramen magnum

Posterior communicating artery

vessel in the cerebral arterial circle (circle of willis )