Neurovascular Anatomy: Internal Carotid Artery: Anterior Cerebral Artery: A1 Segment

Anterior Cerebral Artery

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A1 Segment
(Anterior Cerebral Artery)

From Internal Carotid Bifurcation to Anterior Communicating Artery.

A1 Branches:
Anterior Communicating Artery
(connects both sides of anterior circulations).

Medial Lenticulostriate Arteries (supply basal ganglia, anterior limb of internal capsule).

Recurrent Artery of Heubner (supplies head of caudate and anteroinferior internal capsule).