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The maxillae (plural: ''maxillae'' )〔''OED'' 2nd edition, 1989.〕 are the two maxilla bones forming the upper jaw and palate of the mouth.〔(Merriam-Webster Online Dictionary )''.〕〔Illustrated Anatomy of the Head and Neck, Fehrenbach and Herring, Elsevier, 2012, page 55〕 The two halves are fused at the intermaxillary suture to form the upper jaw. This is similar to the mandible (lower jaw), which is also a fusion of two halves at the mandibular symphysis. Sometimes (e.g. in bony fish), the maxilla is called "upper maxilla," with the mandible being the "lower maxilla." Conversely, in birds the upper jaw is often called "upper mandible." ==Structure== Each half of the fused maxillae consists of: * The body of the maxilla * Four processes * * The zygomatic process * * The frontal process of maxilla * * The alveolar process * * The palatine process * Infraorbital foramen * The maxillary sinus 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「maxilla」の詳細全文を読む スポンサード リンク
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