Cervical Segment Petrous Segment Cavernous Segment Supraclinoid Segment Ophthalmic Artery Anterior Choroidal Artery Posterior Communicating Artery Anterior Cerebral Artery Middle Cerebral Artery Vertebral-Basilar System Circle of Willis Return to Neurovascular Homepage Posterior Communicating Artery Second branch of supraclinoid internal carotid.
Supplies thalamus, hypothalamus, optic chiasm, and mamillary bodies.
Common site for aneurysms.