#throwback The posterior cerebral artery (PCA) has five segments: P1, pre-communicating segment, originates at the end of the basilar artery & terminates at the posterior communicating artery (green) P2, post-communicating segment, begins after the posterior communicating artery (PCOM) and loops around the midbrain & terminates at the origin of the lateral occipital artery as it enters the quadrigeminal cistern (blue) P3, quadrigeminal segment, which runs through the quadrigeminal cistern in a p
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Peter M Lawrence on Instagram: "The posterior cerebral artery (PCA) has five segments: P1, pre-communicating segment, originates at the end of the basilar artery & terminates at the posterior communicating artery (green) P2, post-communicating segment, begins after the posterior communicating artery (PCOM) and loops around the midbrain & terminates at the origin of the lateral occipital artery as it enters the quadrigeminal cistern (blue) P3, quadrigeminal segment, which runs through the quadrig
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