CIRCLE OF WILLIS-BASILAR ARTERY
From NeuroRehab.wiki
SUMMARY
ORIGIN & COURSE
1. Formed by the union of bilateral vertebral arteries at the ponto-medullary junction.
2. Divides at the upper border of the pons into two PCAs
ALL BRANCHES
3. PCA
4. SCA: supplies cerebellum
5. Pontine branches
6. Labyrinthine a.
7. AICA: supplies cerebellum
Image: Circle of Willis. Netter. (2014). Atlas of Human Anatomy, Sixth Edition. 6th ed. Elsevier.
Reference(s)
R.M.H McMinn (1998). Last’s anatomy: regional and applied. Edinburgh: Churchill Livingstone. Get it on Amazon.
Drake, Richard L., et al. Gray's Anatomy for Students. Elsevier, 2023. Get it on Amazon.
