Archive image from page 180 of Cunningham's Text-book of anatomy (1914). Cunningham's Text-book of anatomy cunninghamstextb00cunn Year: 1914 ( THE MAXILLAEY BONES. 147 or postero - lateral surface is separated above from rounded free edge, which forms the anterior margin Ridge for middle concha Middle meatus Frontal process Anterior nasal spine Palatine process Fig. 158.—The Right Maxilla (Medial Aspect). The infra - temporal the orbital aspect by a of the inferior orbital fissure in the articulated skull. Inferiorlyand an- teriorly it is separated from the anterior surface by the zygomati
Archive image from page 180 of Cunningham's Text-book of anatomy (1914). Cunningham's Text-book of anatomy cunninghamstextb00cunn Year: 1914 ( THE MAXILLAEY BONES. 147 or postero - lateral surface is separated above from rounded free edge, which forms the anterior margin Ridge for middle concha Middle meatus Frontal process Anterior nasal spine Palatine process Fig. 158.—The Right Maxilla (Medial Aspect). The infra - temporal the orbital aspect by a of the inferior orbital fissure in the articulated skull. Inferiorlyand an- teriorly it is separated from the anterior surface by the zygomatic process and its free lower border. Medially it is limited by a sharp, irregular margin with which the palate bone articulates. This surface is more or less convex, and is directed towards the infra-tem- poral and pterygopala- tine fossa?. It is pierced iu a downward direction by the apertures of the alveolar canals (foramina alveolaria), two or more in number, which trans- mit the corresponding nerves and vessels to the molar teeth. Its lower part, slightly more pro- minent where it over- hangs the root of the wisdom molar, is often called the tuber maxillare (maxillary tuberosity). The planum orbitale (orbital surface), smooth and plane, is triangular in shape and forms part of the floor of the orbit. Its anterior edge corresponds to the infra-orbital margin; its posterior border coincides with the anterior boundary of the inferior orbital fissure. Its thin medial edge, which may be regarded as the base of the triangle, is notched in front to form the sulcus lacrimalis (lacrimal groove), behind which it articulate? with the lacrimal bone for a short distance, then for a greater length with the lamina papyracea of the ethmoid, and terminates posteriorly in a surface for articulation with the orbital process of the palate bone. Its lateral angle corresponds to the base of the zygomatic process. Traversing its substance is the infra-orbital canal, the anterior opening of whic
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