Vascular supply (Circle of Willis) — Flashcards

Flashcard 31: Which artery connects the internal carotid artery to the posterior cerebral artery in the Circle of Willis?

Answer: Posterior communicating artery

Extra: Aneurysms of the posterior communicating artery (PCoA) are a common cause of third nerve (oculomotor) palsy.

Flashcard 32: What artery supplies the lateral pons? _____

Answer: Anterior inferior cerebellar artery (AICA)

Flashcard 33: The medial aspect of the pre-/post-central gyrus is supplied by the _____ artery

Answer: anterior cerebral

Flashcard 34: Which cerebral artery supplies most of the lateral surface of the cerebral hemisphere? _____

Answer: Middle cerebral artery

Flashcard 35: Which branch of the basilar artery arises just inferior to the posterior cerebral artery and supplies the superior surface of the cerebellum?

Answer: Superior cerebellar artery (SCA)

Flashcard 36: Which cerebral artery supplies the superior ~1 inch of the frontal/parietal cortex?_____

Answer: Anterior cerebral artery

Flashcard 37: Saccular aneurysms of the _____ communicating artery may cause compression of the CN III

Answer: posterior

Flashcard 38: Which cerebral artery supplies the anterior four-fifths of the corpus callosum?_____

Answer: Anterior cerebral artery

Flashcard 39: Saccular aneurysms of the _____ communicating artery may cause compression of the optic chiasm

Answer: anterior

Flashcard 40: What artery supplies the medial pons? _____

Answer: Basilar artery (via paramedian pontine branches)