Inclusive Anatomy
Structure:
The interventricular foramina are a paired set of narrow channels located deep within the cerebral hemispheres.[1] Each foramen lies at the junction of a lateral ventricle and the third ventricle, situated inferior to the body of the lateral ventricle and superior to the thalamus.[1]
Each interventricular foramen has a short, curved, slit-like configuration rather than a true circular shape.[2] Its boundaries are formed by surrounding ventricular structures, including the fornix and thalamus.[2] Although cerebrospinal fluid (CSF) passes through the interventricular foramina, CSF is produced primarily by the choroid plexus within the ventricles, not by the walls of the foramina themselves.[1,3]
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Recipes
Function:
The interventricular foramina provide communication between each lateral ventricle and the third ventricle, allowing CSF produced in the lateral ventricles to flow into the third ventricle and subsequently through the ventricular system.[1,3]
Due to their narrow diameter, the interventricular foramina are clinically significant sites at risk for obstruction. Blockage at this level can impair CSF circulation and contribute to obstructive hydrocephalus.[2]
References:
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Moore KL, Dalley AF, Agur AMR. Clinically Oriented Anatomy. 6th ed. Lippincott Williams & Wilkins; 2010.
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Tubbs RS, Oakes P, Maran IS, Salib C, Loukas M. The foramen of Monro: A review of its anatomy, history, pathology, and surgery. Childs Nerv Syst. 2014;30(10):1645-1649. doi:10.1007/s00381-014-2512-6
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Standring S, ed. Gray’s Anatomy: The Anatomical Basis of Clinical Practice. 40th ed. Churchill Livingstone; 2008.
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