THE BRAIN
, BLOOD SUPPLY TO THE
BRAIN
• Provided via two circulations:
• Anterior circulation- Internal Carotid Artery
• Posterior circulation- Vertebral Arteries
• The two circulations anastomose by the Circle of Willis
, Anterior circulation
Common carotid artery
Internal carotid artery
Lateral to optic chiasma
Middle
cerebral
Anterior
artery
choroidal
artery Anterior
Posterior
cerebral
communicating Anterior
artery
artery communicating
artery