Monro's Foramen is a small, oval opening in the roof of the third ventricle of the brain. It is also referred to as the interventricular foramen or simply the foramen of Monro. The foramen is named after Alexander Monro, a Scottish physician and anatomist who first described it in the 18th century. There are no specific synonyms for the term Monro's Foramen, although it could be referred to simply as the ventricular foramen or the cerebral aqueduct. The foramen plays an important role in the circulation of cerebrospinal fluid, and any obstruction or enlargement of it can result in serious medical conditions such as hydrocephalus.
