Definition of cerebral aqueduct in US English:

cerebral aqueduct


  • A fluid-filled canal that runs through the midbrain connecting the third and fourth ventricles.

    • ‘Transependymal flow (best appreciated on the proton density images) is also seen and consistent with obstruction of the cerebral aqueduct from compression of the midbrain by uncal herniation.’
    • ‘The fourth ventricle communicates with the third ventricle via a narrow tube, the cerebral aqueduct, which runs up through the midbrain.’
    • ‘This ventricle is continued cranially into the cerebral aqueduct of the midbrain.’