All the structures are related to hyoglossus deeply except
Relations of HyoglossusSuperficialStyloglossus, lingual nerve, submandibular ganglion, deep pa of the submandibular gland, submandibular duct, hypoglossal nerve and veins accompanying it.Deep(a) Inferior longitudinal muscle of the tongue.(b) Genioglossus (c) Middle constrictor of the pharynx.(d) Glossopharyngeal nerve.(e) Stylohyoid ligament.(f) Lingual aery.Structures passing deep to the posterior border of hyoglossus, from above downwards:(a) Glossopharyngeal nerve.(b) Stylohyoid ligament.(c) Lingual aery.Ref: Chaurasia; Volume III; 7th edition; Page 136
Lingual aery
Lingual nerve
Middle constrictor of Pharynx
Stylohyoid ligament
Thorax