Fig.1.

Segments of the posterior cerebral artery and its branches.
P1 segment:
1 - Thalamo-perforans arteries;
2 - The long recurrent artery;
3 - The short recurrent artery.
P2A segment:
4 - Peduncular perforans arteries;
5 - Arteria choroidea posteriores medialis;
6 - The hippocamp artery;
7 - The anterior temporal artery;
8 - The middle temporal artery.
P2P segment:
9 - The posterior temporal artery;
10 - Arteria choroidea posteriores laterales.
P3 and P4 segments:
11 - The artery of the calcarine fissure;
12 - The parieto-occipital artery.