Definition of foramen magnum in English:

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foramen magnum


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


Late 19th century: Latin, 'large opening'.

For editors and proofreaders

Syllabification: fo·ra·men mag·num

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