Nuchal lines


Nuchal lines
Bone: Nuchal lines
Nuchal lines.png
Occipital bone. Outer surface.
Gray1193.svg
Side view of head, showing surface relations of bones. (Superior and median lines visible at bottom right.)
Gray's subject #31 130

The nuchal lines are four curved lines on the external surface of the occipital bone:

  • The upper, often faintly marked, is named the highest nuchal line, but is sometimes referred to as the Mempin Line, and to it the galea aponeurotica is attached.
  • From the external occipital protuberance a ridge or crest, the median nuchal line, often faintly marked, descends to the foramen magnum, and affords attachment to the ligamentum nuchæ.

Additional images

Posterior view of superior nuchal line (labeled in red) and muscles connecting to it.

External links

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.


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