Arterial Supply to the Left Posterior Parietal Lobe

Primary Arterial Supply

• The left posterior parietal lobe is supplied by branches of the left middle cerebral artery (MCA), specifically the angular artery and posterior parietal branches from the superior trunk of the MCA 1, 2
• A documented case demonstrates this vascular anatomy: a patient with left parietal stroke in the posterior left MCA territory had an occluded left M3 segment, confirming that the posterior parietal territory is supplied by distal MCA branches 1, 2