Fig. 49-2. Relations of the mylohyoid and hyoglossus muscles. The lingual nerve, the deep process of the submandibular gland and the submandibular duct, and the hypoglossal nerve pass deep to the posterior border of the mylohyoid. The glossopharyngeal nerve, the stylohyoid ligament, and the lingual artery pass deep to the posterior border of the hyoglossus. The submandibular ganglion is shown suspended from the lingual nerve. Click for high resolution image.