![第一指长展肌沟{腕斜伸肌] - 狗-骨学 - 前肢，胸肢 - vet-Anatomy](https://cdn.imaios.cn/i/imaios-images/web/images/vetanatomy/modules/dog-osteology-illustrations/images/v3/d51bec6a6d135650e501da17dbc10a9c17d6e0dd1b6c7af061cfe9ae26406815?ar=640:670&auto=format,compress&bg=FFFFFF&fit=crop&p64=NzcyLDExNzQ&t=56ys5LiA5oyH6ZW_5bGV6IKM5rKfe-iFleaWnOS8uOiCjF0&tf=Tm90byBTYW5zIFND&tx=772&ty=1174&w=350&wk=1&s=e9c5231691a068c25143e352bd301c71)
第一指长展肌沟{腕斜伸肌]
Sulcus musculi abductori digiti I longus [musculi extensori carpi obliquus]
定义
在桡骨远端背侧面，紧邻茎状突处，拇长展肌沟（Sulcus musculi abductor digiti I longus/Musculi extensori carpi obliquus）浅而斜行。
另外两条沟垂直走行且位于真正的背侧面：腕桡侧伸肌沟居中，最宽，与腕桡侧伸肌群（或由两肌合并而成的腕桡侧伸肌）的肌腱相对应；指总伸肌沟较窄，与指总伸肌的肌腱相对应。
參考資料
![第一指长展肌沟{腕斜伸肌] - 狗的手部 - 横的 - vet-Anatomy](https://cdn.imaios.cn/i/imaios-images/web/images/vetanatomy/modules/dog-carpus-ct/images/v1/b27df4c758b1180452131063b30108eef636ac57bdd4f96b1c0b9cf322bd717e?ar=640:670&auto=format,compress&bg=000000&fit=crop&p64=MjE1LDE2NQ&t=56ys5LiA5oyH6ZW_5bGV6IKM5rKfe-iFleaWnOS8uOiCjF0&tf=Tm90byBTYW5zIFND&tx=215&ty=165&w=200&wk=1&s=093b3dd931767f7b3f52d215e7a6b430 "第一指长展肌沟{腕斜伸肌] - 狗的手部 - 横的 - vet-Anatomy")
![第一指长展肌沟{腕斜伸肌] - 狗的手部 - 矢状的 - vet-Anatomy](https://cdn.imaios.cn/i/imaios-images/web/images/vetanatomy/modules/dog-carpus-ct/images/v1/fdf3d2fd3eece4e99e20830aab39cc0fd6eb9780ec92b94c5706d766c8ae9596?ar=640:670&auto=format,compress&bg=000000&fit=crop&p64=MjU1LDkw&t=56ys5LiA5oyH6ZW_5bGV6IKM5rKfe-iFleaWnOS8uOiCjF0&tf=Tm90byBTYW5zIFND&tx=255&ty=90&w=200&wk=1&s=45ff9ec1d6e386fd52125879f4989bd3 "第一指长展肌沟{腕斜伸肌] - 狗的手部 - 矢状的 - vet-Anatomy")
![第一指长展肌沟{腕斜伸肌] - 狗的手部 - 背的，背侧的 - vet-Anatomy](https://cdn.imaios.cn/i/imaios-images/web/images/vetanatomy/modules/dog-carpus-ct/images/v1/72d387ea1cc9da305348a32aa4dd00569f16321949a4149d3c64a0b1698861c6?ar=640:670&auto=format,compress&bg=000000&fit=crop&p64=Mjc5LDgx&t=56ys5LiA5oyH6ZW_5bGV6IKM5rKfe-iFleaWnOS8uOiCjF0&tf=Tm90byBTYW5zIFND&tx=279&ty=81&w=200&wk=1&s=9fb55ad0fcf772280934a39d46891526 "第一指长展肌沟{腕斜伸肌] - 狗的手部 - 背的，背侧的 - vet-Anatomy")
![第一指长展肌沟{腕斜伸肌] - 狗的手部 - 三维 - 骨 - vet-Anatomy](https://cdn.imaios.cn/i/imaios-images/web/images/vetanatomy/modules/dog-carpus-ct/images/v1/028c3586bb9a6602ee762b3ec8f17836c18488ddff2bb4ed56bf83e817a9562a?ar=640:670&auto=format,compress&bg=000000&fit=crop&p64=MzU4LDc5&t=56ys5LiA5oyH6ZW_5bGV6IKM5rKfe-iFleaWnOS8uOiCjF0&tf=Tm90byBTYW5zIFND&tx=358&ty=79&w=200&wk=1&s=a5c40f73c145fd47b14d22deb4e8cb24 "第一指长展肌沟{腕斜伸肌] - 狗的手部 - 三维 - 骨 - vet-Anatomy")
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![第一指长展肌沟{腕斜伸肌] - 狗-骨学 - 前肢，胸肢 - vet-Anatomy](https://cdn.imaios.cn/i/imaios-images/web/images/vetanatomy/modules/dog-osteology-illustrations/images/v3/be31632df2bbba91de67e4f3c50429a030e764c34a4a4c9d00ce033056f03eab?ar=640:670&auto=format,compress&bg=FFFFFF&fit=crop&p64=NTcyLDExOTQ&t=56ys5LiA5oyH6ZW_5bGV6IKM5rKfe-iFleaWnOS8uOiCjF0&tf=Tm90byBTYW5zIFND&tx=572&ty=1194&w=200&wk=1&s=678804091f4b53edb42b0da0adf26cc1 "第一指长展肌沟{腕斜伸肌] - 狗-骨学 - 前肢，胸肢 - vet-Anatomy")
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