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Circle of Willis

The Circle of Willis is an anastomotic system of blood vessels that is thought to ensure blood supply to the brainstem and diencephalon. It also confuses most students. Tyr to identify the vessels on the the model below. Then try to identify the vessels on the brain and the neurovascular skull < models.

Word Bank

  • Anterior cerebral artery
  • Anterior communicating artery
  • Basilar artery
  • Carotid artery
  • Middle cerebral artery
  • Posterior cerebral artery
  • Posterior communicating artery
  • Vertebral artery
Posterior cerebral artery Carotid artery Vertebral artery Basilar artery Anterior cerebral artery Middle cerebral artery Anterior communicating artery Posterior communicating artery