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近指节骨 [系骨]
Phalanx proximalis [Os compedale]
- 相关用语: 近指（趾）节骨
定义
近节趾骨（第一趾骨）由近端（底）、体（骨体）和远端（头）组成。
两端均具有关节面及供韧带附着的骨性隆起。
在马中，近节趾骨有时称为 os compedale，其形态为背掌侧压扁的圆柱形。底比头宽。近节趾骨底的后部具有内侧和外侧掌侧隆起，为显著的骨性结构，分别供球节侧副韧带的内侧部和外侧部以及内侧和外侧籽骨短韧带附着。底的关节面由一矢状沟分为较大的内侧腔和较小的外侧腔。骨体的掌侧面可见一粗糙的三角形区域，称为trigonum phalangis proximalis，其边界由骨嵴围成。
參考資料
Veterinary Anatomy of Domestic Mammals: Textbook and Colour Atlas, Sixth Edition - Horst Erich König, Hans-Georg Liebich - Schattauer - ISBN-13: 978-3794528332
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