![元指节骨 [爪骨，蹄骨] - 狗 - 大体解剖 - 左外侧 - vet-Anatomy](https://cdn.imaios.cn/i/imaios-images/web/images/vetanatomy/modules/dog-general-anatomy-illustrations/images/v2/92766c33142b79cac148f198a1da790488a75081f3383064f43c9bc9ce6df542?ar=640:670&auto=format,compress&bg=FFFFFF&fit=crop&p64=Mzc0LDExODA&t=5YWD5oyH6IqC6aqoIFvniKrpqqjvvIzouYTpqqhd&tf=Tm90byBTYW5zIFND&tx=374&ty=1180&w=350&wk=1&s=4d95168118a90f231bf687d3ac667f54)
元指节骨 [爪骨，蹄骨]
Phalanx distalis [Os unguiculare, Os ungulare]
- 相关用语: 元指节骨[蹄骨]; 远指节骨
定义
远节（第三）趾/指骨因物种不同而呈现差异，以适应包裹其外的蹄或爪的形态。各物种共通的结构包括：关节面、壁面和蹄底面。
在肉食动物中，远节趾/指骨呈钩状，侧向压扁，末端延伸为尖锐的尖端，外覆角质爪。
參考資料
Text by Antoine Micheau, MD - Copyright IMAIOS
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