opening of aqueduct of midbrain(redirected from apertura aqueductus mesencephali)
opening of aqueduct of midbrain[TA]
entrance to the cerebral aqueduct; point at which the caudal part of the third ventricle is continuous with the cerebral aqueduct of the midbrain; located on the midline immediately anterior (ventral) to the posterior commissure.
Synonym(s): apertura aqueductus mesencephali [TA], apertura aqueductus cerebri ☆ , opening of cerebral aqueduct ☆ , aditus ad aqueductum cerebri
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