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Above: Frontal View. Legend: 1- Mental tubercle. 2- Body of mandible. 3- Ramus of mandible. 4- Anterior nasal spine. 5- Canine fossa. 6- Infra-orbital foramen. 7- Zygomatic-facial foramen. 8- Orbital surface of maxilla. 9- Temporal fossa. 10- Lateral surface of ethmoid. 11- Superior orbital fissure. 12- Lacrimal bone and groove. 13- Optic foramen. 14- Ethmoidal foramina. 15- Temporal line. 16- Supra-orbital notch. 17- Glabella. 18- Frontal tuberosity. 19- Superciliary arch. 20- Parietal bone. 21- Naso-frontal suture. 22- Pterion. 23- Great wing of sphenoid. 24- Orbital surface of great wing of sphenoid. 25- Squamous part of temporal. 26- Left nasal bone. 27- Zygomatic bone. 28- Inferior orbital fissure. 27- Zygomatic bone. 28- Inferior orbital fissure. 29- Zygomatic arch. 30- Apertura piriformis, displaying nasal septum and infeior and middle concha. 31- Mastoid process. 32- Incisive fossa. 33- Angle of mandible. 34- Mental foramen. 35- Symphysis menti.
Above: Lateral View. Legend: 1- Mental foramen. 2- Body of the mandible. 3- Maxilla. 4- Ramus of the mandible. 5- Zygomatic arch. 6- Styloid process. 7- External acoustic meatus. 8- Mastoid process. 9- Asterion. 10- Superior nuchal line. 11- External occipital protuberance. 12- Lambdoid suture. 13- Occipital bone. 14- Lambda. 15- Obelion. 16- Parietal bone. 17- Lower temporal line. 18- Upper temporal line. 19- Squamous temporal. 20- Bregma. 21- Coronal suture. 22- Stephanion. 23- Frontal bone. 24- Pterion. 25- Temporal fossa. 26- Great wing of sphenoid. 27- Zygomatic bone. 28- Zygomatic-facial foramen. 29- Fossa sacci lacrimalis. 30- Nasal bone. 31- Infra-orbital foramen. 32- Anterior nasal spine.
Above: Basal View of the lower surface of the cranium (mandible is removed). Legend: 1- External Occipital Crest. 2- Superior nuchal line of the occipital bone. 3- Foramen magnum. 4- Occipital condyle. 5- Mastoid notch. 6- Mastoid process. 7- External acoustic meatus. 8- Styloid process. 9- Mandibular fossa. 10- Foramen spinosum. 11- Angular spine of the sphenoid. 12- Foramen ovale. 13- Lateral pterygoid lamina. 14- Hamulus of medial pterygoid lamina. 15- Vomer. 16- Posterior nasal spine. 17- Horzontal part of palate bone. 18- Palatine process of maxilla. 19- Incisive foramen. 20- Intermaxillary suture. 21- Greater palatine foramen. 22- Zygomatic process of maxilla. 23- Inferior orbital fissure. 24- Infra-temporal fossa. 25- Zygomatic arch. 26- Left choana. 27- Pterygoid fossa. 28- Scaphoid fossa. 29- Foramen lacerum. 30- Opening of osseous part of auditory tube. 31- Carotid canal. 32- Jugular fossa. 33- Stylo-mastoid foramen. 34- Jugular process of occipital bone. 35- Groove for occipital artery. 36- Mastoid foramen. 37- Canalis condyloideus. 38- Inferior nuchal line of occipital bone. 39- External occipital protuberance.

The diagrams above show the skull and its constituent bones in different colors from three views. Also indicated are some features of the skull and some landmarks, as explained in the legend for each diagram. Features are visible aspects of the skull bones, such as lines, shapes, and bulges. Landmarks are the more abstract reference points used by anatomists. See the pages of Cranial Bones and Facial Bones for views of the individual bones of the skull. See the Landmarks page for more on these anatomical reference points.

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