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The lateral pterygoid plate of the sphenoid (or lateral lamina of pterygoid process) is broad, thin, and everted and forms the lateral part of a horseshoe like process that extends from the inferior aspect of the sphenoid bone, and serves as the origin of the lateral pterygoid muscle, which functions in allowing the mandible to move in a lateral and medial direction, or from side-to-side. Its lateral surface forms part of the medial wall of the infratemporal fossa, and gives attachment to the lateral pterygoid muscle; its medial surface forms part of the pterygoid fossa, and gives attachment to the medial pterygoid muscle. Posterior edge is sharp, and often has sharp projection - pterygospinous process (Civinini process). ==Additional images== File:Gray147.png|Sphenoid bone. Upper and posterior surfaces. File:Gray187.png|Base of skull. Inferior surface. File:Gray189.png|Left infratemporal fossa. 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「Lateral pterygoid plate」の詳細全文を読む スポンサード リンク
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