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The pterion is the region where the frontal, parietal, temporal, and sphenoid join together.〔R.M. McMinn.Last's anatomy regional and applied, 9th edition. Edinburgh (UK): Churchill Livingstone; 1994. Page 645〕 It is located on the side of the skull, just behind the temple. ==Structure== The pterion is located in the temporal fossa, approximately 2.6 cm behind and 1.3 cm above the posterolateral margin of the frontozygomatic suture. It is the junction between four bones: * the parietal bone * the squamous part of temporal bone * the greater wing of sphenoid bone * the frontal bone These bones are typically joined by three cranial sutures: * the sphenoparietal suture joins the sphenoid and parietal bones * the coronal suture joins the frontal bone to the sphenoid and parietal bones * the squamous suture joins the temporal bone to the sphenoid and parietal bones 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「Pterion」の詳細全文を読む スポンサード リンク
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