Interventricular foramen
Foramen interventriculare
- Latin eponym: Foramen Monroi
- Eponym: Foramen of Monro
Definition
The interventricular foramen of Monro is a short, paired channel connecting each lateral ventricle with the third ventricle. It is situated on each side at the junction of the roof and anterior wall of the third ventricle.
Boundaris
It is bounded anteriorly by the junction of the body and column of the fornix and posteriorly by the anterior pole of the thalamus.
Contents
The choroid plexus passes through the foramen, together with distal branches of the medial posterior choroidal arteries and the thalamostriate, superior choroidal and septal veins. The choroidal fissure continues caudally from the interventricular foramen.
References
Tubbs, R.S., Oakes, P., Maran, I.S. et al. The foramen of Monro: a review of its anatomy, history, pathology, and surgery. Childs Nerv Syst 30, 1645–1649 (2014). https://doi.org/10.1007/s00381-014-2512-6
Scelsi CL, Rahim TA, Morris JA, Kramer GJ, Gilbert BC, Forseen SE. The Lateral Ventricles: A Detailed Review of Anatomy, Development, and Anatomic Variations. AJNR Am J Neuroradiol. 2020 Apr;41(4):566-572.
