Cortical part - Arteriography brain - Vertebral artery - Cranial (RAO: 45° - CRA: 10°) - e-Anatomy
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Cortical part

Pars corticalis

  • Latin synonym: Segmentum P4
  • Synonym: P4 segment
  • Related terms: P4 segment; Posterior cerebral artery: P4 segment

Definition

The cortical (P4) segment is the last segment of the posterior cerebral artery (PCA), as it ends in the calcarine sulcus. The P4 segment most commonly gives rise to the parieto-occipital branches and the calcarine artery, which supplies areas bordering the calcarine sulcus and the medial surface of the occipital lobe.

References

Text by Antoine Micheau, MD - Copyright IMAIOS

Javed K, Reddy V, M Das J. Neuroanatomy, Posterior Cerebral Arteries. 2023 Aug 1. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2024 Jan–. PMID: 308607

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