Meningohypophyseal trunk

The meningohypophyseal trunk, also known as the posterior trunk, is a branch of the C4 segment of the internal carotid artery. It is, as opposed to the inferolateral trunk, almost always identified at dissection and usually visualised on good quality angiography. 

It has three branches:

  • inferior hypophyseal artery: to the pituitary gland, contributing to the "inferior hypophyseal arterial circle"
  • marginal tentorial artery (Bernasconi-Casanari artery): to the meninges of the tentorium
  • clival branches: to the meninges overlying the clivus 
Share article

Article information

rID: 4711
Section: Anatomy
Synonyms or Alternate Spellings:
  • Posterior trunk

Support Radiopaedia and see fewer ads

Cases and figures

  • Drag
    Case 1: meningohypophyseal trunk (arrows)
    Drag here to reorder.
  • Updating… Please wait.

    Alert accept

    Error Unable to process the form. Check for errors and try again.

    Alert accept Thank you for updating your details.