Corpus3D

Spine

External occipital protuberance

Protuberantia occipitalis externa

How to find it
Run your finger down the midline of the back of the head until you meet a bump, where the skull turns into the neck. From it the superior nuchal line runs off to both sides.
What you use it for
Attachment of trapezius and the nuchal ligament. Tenderness along the nuchal line belongs to cervicogenic headache and to tension in the neck muscles.
On the bone
Occipital bone
Body region
Spine