Foramen-magnum
[mag-nuh m] /ˈmæg nəm/
noun, Anatomy.
1.
the large opening in the base of the skull forming the passage from the cranial cavity to the spinal canal.
noun
1.
the large opening at the base of the skull through which the spinal cord passes
foramen magnum foramen mag·num (māg’nəm)
n.
See great foramen.
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