Skull Anatomy, Inferior ViewOnline version Bony skull anatomy, inferior view/cranial base (from Moore's Clinically Oriented Anatomy Ch. 8). Recommend viewing in *full screen* due to level of detail. by Caroline SK 1 Incisive Fossa 2 Central Incisor Teeth 3 Posterior Nasal Spine 4 Palatine Process of Maxilla 5 Alveolar Process of Maxilla 6 Greater and lesser palatine foramina 7 Horizontal plate of palatine bone 8 Choana 9 Foramen lacerum 10 Foramen ovale 11 Pterygoid hamulus of medial plate of pterygoid process 12 Lateral plate of pterygoid process 13 Medial plate of pterygoid process 14 Pterygoid process 15 Sulcus for cartilaginous part of pharyngotympanic tube 16 Zygomatic arch 17 Squamotympanic fissure 18 External acoustic meatus 19 Mandibular fossa 20 Spine of sphenoid 21 Styloid process 22 Stylomastoid foramen 23 Mastoid process 24 Jugular foramen 25 External opening of carotid canal 26 Occipital condyle 27 Mastoid foramen 28 Condylar canal 29 External occipital crest 30 External occipital protuberance 31 Foramen magnum