本文所指眶上孔(Supraorbital fora-men)位于眼眶上缘较靠近内侧部,是眶上神经和血管的孔道。所谓舌下神经管是位于枕大孔前外侧穿过枕骨髁的管道,舌下神经管即由此管道通向颅外。有少数人该管道被增生的细骨桥一分为二,即谓舌下神经管二分(Hypoglossal canal bridging)。眶上孔和舌下神经管二分这两个解剖 This article refers to the supraorbital foramen (Supraorbital fora-men) located in the upper edge of the orbit closer to the medial part, is the supraorbital nerve and blood vessels. The so-called hypoglossal nerve canal is located in the outer front occipital foramen through the occipital condyle pipe, which is the sublingual tube that leads to the extracranial. There are a few people who have been hyperplasia of the small bone bridge is divided into two, that the sublingual Hypoglossal canal bridging. The supraorbital foramen and hypoglossal ducts divide the two anatomies