Meaning of foramen magnum in English:

foramen magnum

Pronunciation /ˈmaɡnəm/


  • The hole in the base of the skull through which the spinal cord passes.

    ‘The cysts may localize anywhere within the CNS, but are often found at the base of the brain around the foramen magnum or surrounding the spinal cord.’
    • ‘Located at the base of the skull, the medulla oblongata is continuous with the spinal cord at the foramen magnum.’
    • ‘At the level of the foramen magnum, where the spinal cord ends and the medulla oblongata begins, the gray matter undergoes a marked reorganization.’
    • ‘The root lies dorsal to the rootlets of the 1st cervical nerve and the vertebral artery and can be followed through the foramen magnum into the cranial cavity.’
    • ‘A malformed brain stem was attached to the foramen magnum.’


Latin, ‘large opening’.