auricular branch of occipital artery auricular branch of occipital artery 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. auricular branch of occipital arterysuperficial dissection of the right side of the neck, showing the carotid and subclavian arteriesdetailssourceoccipital arteryidentifierslatinramus auricularis arteriae occipitalista98a12.2.05.032ta24400fma49602anatomical terminology