1 — Pons; 2 — Anterior surface of petrous part; 3 — Internal carotid artery; 4 — Mastoid antrum; 5 — Bony labirinth; 6 — Accessory nerve [XI]; 7 — Cervical nerve [CIV]; 8 — Superior cervical ganglion; 9 — Ansa cervicalis; 10 — Vagus nerve [X]; 11 — Styloglossus; 12 — Hypoglossal nerve [XII]; 13 — External carotid artery; 14 — Stylohyoid; 15 — Vallate papillae; 16 — Hyoglossus; 17 — Digastric, anterior belly; 18 — Geniohyoid;
19 — Stylohyoid
