Occipital branch of posterior auricular artery

The occipital branch of posterior auricular artery passes backward, over the Sternocleidomastoideus, to the scalp above and behind the ear. It supplies the Occipitalis and the scalp in this situation and anastomoses with the occipital artery.

References

This article incorporates text in the public domain from page 557 of the 20th edition of Gray's Anatomy (1918)