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Precommunicating part of posterior cerebral artery: anatomy, location and function

The P1 segment of the posterior cerebral artery. It gives perforating branches to the midbrain and thalamus.

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Highlighted in the model: Precommunicating part of posterior cerebral artery. Click any part to read about it, or switch off “Highlight topic” to see the whole body. 3D data: BodyParts3D, © The Database Center for Life Science, CC BY 4.0; meshes simplified and recoloured. The model is an adult male.

Precommunicating part of posterior cerebral artery at a glance

Also called
P1 segment of posterior cerebral artery
What it is
The P1 segment of the posterior cerebral artery.
Location
It runs from the basilar bifurcation to the junction with the posterior communicating artery, lying near the oculomotor nerve.
Function
It gives perforating branches to the midbrain and thalamus.
Body system
Cardiovascular · paired (left and right)
FMA ID
FMA50639 (Foundational Model of Anatomy)

Key facts

  • It is also called the P1 segment.

Structures next to the precommunicating part of posterior cerebral artery

The nearest named structures in the 3D model, measured from the centre of each part:

References

  1. Foundational Model of Anatomy: Precommunicating part of posterior cerebral artery (FMA50639). EMBL-EBI Ontology Lookup Service.
  2. OpenStax. Anatomy and Physiology 2e, §20.1 Structure and Function of Blood Vessels. Rice University, 2022.
  3. 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.