1 — Highest nuchal line; 2 — Superior nuchal line; 3 — Inferior nuchal line; 4 — Foramen magnum; 5 — Hypoglossal canal; 6 — Foramen lacerum; 7 — Jugular foramen; 8 — Stylomastoid foramen; 9 — Foramen spinosum; 10 — Foramen ovale; 11 — Vomer; 12 — Pterygoid process, medial plate; 13 — Pterygoid process, lateral plate; 14 — Lesser palatine foramina; 15 — Greater palatine foramen; 16 — Palatine bone; 17 — Transverse palatine suture; 18 — Median palatine suture; 19 — Incisive foramina; 20 — Maxilla, palatine process; 21 — Teeth; 22 — Choana; Posterior nasal aperture; 23 — Maxilla, zygomatic process; 24 — Inferior orbital fissure; 25 — Zygomatic bone, temporal surface; 26 — Pharyngeal tubercle; 27 — Zygomatic arch; 28 — Temporal bone; 29 — Mandibular fossa; 30 — Styloid process; 31 — Mastoid process; 32 — Mastoid notch; 33 — Mastoid foramen; 34 — Occipital condyle; 35 — Condylar canal; 36 — Parietal bone; 37 — External occipital protuberance
