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 
Neuroanatomy
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Article information

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

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