Posterior thalamoperforating arteries branch off the P1 segment to supply blood to the midbrain and thalamus.
Cortical branches of the PCA supply the inferomedial part of the temporal lobe, occipital pole, visual cortex, and splenium of the corpus callosum.
Anterior, middle and posterior hippocampal arteries may arise from PCA and supply hippocampus
Stroke pattern: