Figure 5:

Cortical anastomosis between branches of the middle and posterior cerebral arteries. Cortical anastomoses play an important role in the arterial supply of the uncus. The solid black arrow points do an anastomosis between branches of the middle and posterior cerebral arteries, evidence of a mixed vascularization from both the anterior and posterior circulations. This network could be important in protecting the structures in the case of thrombotic or ischemic events.