1 — Arch of aorta; Aortic arch, brachiocephalic trunk; 2 — Trachea; 3 — Trachea, membranous wall; 4 — Oesophagus; 5 — Cervical fascia, prevertebral layer; 6 — Spinal dura mater; 7 — Extradural space; Epidural space; 8 — Anterior longitudinal ligament; 9 — Lamina of cricoid cartilage; 10 — Posterior longitudinal ligament; 11 — Corniculate; Cuneiform tubercles; 12 — Oropharynx; 13 — Palatopharyngeal arch; Posterior pillar of fauces; 14 — Axis [CII]; 15 — Anterior arch; 16 — Apical ligament of dens; 17 — Soft palate; 18 — Anterior atlanto-occipital membrane; 19 — Pharyngobasilar fascia; 20 — Pharyngeal tonsil; 21 — Sphenoid; Sphenoidal bone; 22 — Pharyngeal opening of auditory tube; Torus tubarius; 23 — Nasopharyngeal meatus, salpingopharyngeal fold; 24 — Ala of vomer; 25 — Sphenoidal sinus; 26 — Nasal bone; 27 — Nasal septum; 28 — Septal nasal cartilage; 29 — Palatine tonsil; 30 — Maxilla; 31 — Nasal vestibule; 32 — Nose, major alar cartilage; 33 — Foramen caecum of tongue; 34 — Sublingual caruncle; 35 — Genioglossus; 36 — Geniohyoid; 37 — Mandible; 38 — Mylohyoid; 39 — Hyoid bone; 40 — Epiglottis; 41 — Vocal fold; Vestibular fold; 42 — Thyroid cartilage; 43 — Arch of cricoid cartilage; 44 — Cervical fascia, investing layer; superficial layer; 45 — Thyroid gland; Isthmus; 46 — Cervical fascia, pretracheal layer; 47 — Inferior thyroid vein; 48 — Jugular venous arch; 49 — Sternothyroid; 50 — Manubrium of sternum; 51 — Brachiocephalic vein
