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Superior Nuchal Line

The superior nuchal line limits the lower boundary of the perpendicularly flat occipital plane and creates a ridge that spreads out across the entire occiput. There, a faint, recognizable supreme nuchal line is located over this ridge. Centrally, the supreme nuchal line goes downwards at the bottom in order to form a distinct external occipital protuberance that is located somewhat over the situation of the superior nuchal ridge.

Superior Nuchal Line

Superior Nuchal Line

Structure

  • Over this line, the bone is smooth as well as enclosed by the occipital belly of the occipitofrontalis muscle,
  • Under this line, the bone is roughened by the attachments of the semispinalis capitis and obliquus capitis superior muscles.

Relations

The region of the line provides attachment for:

There is a faint supreme nuchal line which can be recognized over this ridge.

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By Dr. Joseph H Volker | 2018-08-30T10:07:17+00:00 August 8th, 2018|Anatomy, Areas, Head and Neck|0 Comments