Hosta

The auricular branch of occipital artery supplies the back of the concha and frequently gives off a branch, which enters the skull through the mastoid foramen and supplies the dura mater, the diploë, and the mastoid cells; this latter branch sometimes arises from the occipital artery, and is then known as the mastoid branch.

References

This article incorporates text in the public domain from page 556 of the 20th edition of Gray's Anatomy (1918)