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Occipital bone Basion01.png
Human skull seen from below (basion shown in red)
Base of the skull inferior surface (position of basion is shown at center)
Gray's p.181
Anatomical terminology

The basion is part of the human body's musculoskeletal system and is located on the skull. Anatomically it can be identified as the midpoint on the anterior margin of the foramen magnum on the occipital bone. It is a cephalometric landmark.

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This article incorporates text from a public domain edition of Gray's Anatomy.

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