Arterial system of the head

While assembling the basal ganglia CAD models, it occurred to me that I can also build a decent model of the arterial supply to the head. The arterial system was one of the first things we had to learn in the neurobiology course, so I'd like to assemble the 3D model.

Arterial system. Some details (e.g. posterior spinal arteries) are missing:

Superimposing the basal ganglia structures from yesterday: