Postcommunicating part of posterior cerebral artery at a glance
- Also called
- P2 segment of posterior cerebral artery
- What it is
- The P2 segment of the posterior cerebral artery, running beyond the posterior communicating artery.
- Location
- It begins at the junction with the posterior communicating artery and curves around the midbrain in the ambient cistern, giving thalamogeniculate, choroidal and cortical branches.
- Function
- It supplies the midbrain, thalamus and the temporal and occipital lobes.
- Body system
- Cardiovascular · paired (left and right)
- FMA ID
- FMA50641 (Foundational Model of Anatomy)
Key facts
- It is also called the P2 segment.
- It lies beside the oculomotor nerve and the free edge of the tentorium, where uncal herniation can compress it, causing occipital infarction.
Structures next to the postcommunicating part of posterior cerebral artery
The nearest named structures in the 3D model, measured from the centre of each part:
- Medial geniculate body · nervous
- Parahippocampal gyrus · nervous
- Brachium of inferior colliculus · nervous
- Optic tract · nervous
- Lateral geniculate body · nervous
- Midbrain · nervous
- Superior cerebellar artery · cardiovascular
- Inferior colliculus · nervous
- Cerebral aqueduct · nervous
- Anterior choroidal artery · cardiovascular
References
- Foundational Model of Anatomy: Postcommunicating part of posterior cerebral artery (FMA50641). EMBL-EBI Ontology Lookup Service.
- OpenStax. Anatomy and Physiology 2e, §20.1 Structure and Function of Blood Vessels. Rice University, 2022.
- Mitsuhashi N. et al. (2009). BodyParts3D: 3D structure database for anatomical concepts. Nucleic Acids Research 37, D782–D785. Data © The Database Center for Life Science, CC BY 4.0.
Related anatomy
Explore the whole body in the interactive 3D human anatomy model, or browse the A–Z list of human structures.