Definition of Monro's foramen
1. Noun. The small opening (on both the right and left sides) that connects the third ventricle in the diencephalon with the lateral ventricle in the cerebral hemisphere.
Medical Definition of Monro's foramen
1. The short, often slitlike passage that, on both the left and right side, connects the third brain ventricle (of the diencephalon) with the lateral ventricles (of the cerebral hemispheres); the passage is bounded anteriomedially by the column of fornix and posterolaterally by the anterior pole of the thalamus. Synonym: foramen interventriculare, Monro's foramen, porta. (05 Mar 2000)
Monro's Foramen Pictures
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