![[跖背动脉]趾背动脉 - 下肢血管造影 - 上肢动脉 - e-Anatomy](https://cdn.imaios.cn/i/imaios-images/web/images/eanatomy/modules/mi-anatomie/images/v2/dff0d925d8915fb8a853b5b8ea47522445c781838c9e7fa33b845a9dc87add48?ar=640:670&auto=format,compress&bg=FFFFFF&fit=crop&p64=NzQ0LDExMjY&t=W-i3luiDjOWKqOiEiV3otr7og4zliqjohIk&tf=Tm90byBTYW5zIFND&tx=744&ty=1126&w=350&wk=1&s=83bb606806637ed2b7179352ce8c317b)
[跖背动脉]趾背动脉
Arteriae digitales dorsales pedis
定义
第二、第三和第四跖背动脉沿相应的骨间背侧肌向前走行；在趾间隙处，每条动脉分为两支趾背数字支，分布至相邻各趾，即足趾背动脉。第四跖背动脉发出一支（趾背动脉），供应第五趾的外侧面。
第一跖背动脉（a. dorsalis hallucis）沿第一骨间背侧肌向前走行，在第一趾与第二趾之间的趾蹼处分为两支趾背动脉：其中一支穿过拇长伸肌腱深面，分布至拇趾的内侧缘；另一支分叉后供应拇趾与第二趾的相邻侧面。
參考資料
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![[跖背动脉]趾背动脉 - 前足MRI - 矢状 PD FS - e-Anatomy](https://cdn.imaios.cn/i/imaios-images/web/images/eanatomy/modules/forefoot-mri/images/v1/8807157b6af8d24adf43417d3d665d01a46021d333f39e02b107e6781f352b49?ar=640:670&auto=format,compress&bg=000000&fit=crop&p64=MTY4LDM1Mg&t=W-i3luiDjOWKqOiEiV3otr7og4zliqjohIk&tf=Tm90byBTYW5zIFND&tx=168&ty=352&w=200&wk=1&s=9fa881b79a7befaa592d19df010d453c "[跖背动脉]趾背动脉 - 前足MRI - 矢状 PD FS - e-Anatomy")
![[跖背动脉]趾背动脉 - 前足MRI - Sagittal T1 - e-Anatomy](https://cdn.imaios.cn/i/imaios-images/web/images/eanatomy/modules/forefoot-mri/images/v1/e803f59becd4fe2e386b3e64c94db7c48adf71a8ee18ad09aa73b6ded6a7ae24?ar=640:670&auto=format,compress&bg=000000&fit=crop&p64=MjI2LDM2Ng&t=W-i3luiDjOWKqOiEiV3otr7og4zliqjohIk&tf=Tm90byBTYW5zIFND&tx=226&ty=366&w=200&wk=1&s=3e9faf38ef9686b59c101af35ed18c3f "[跖背动脉]趾背动脉 - 前足MRI - Sagittal T1 - e-Anatomy")
![[跖背动脉]趾背动脉 - 前足MRI - Coronal PD FS - e-Anatomy](https://cdn.imaios.cn/i/imaios-images/web/images/eanatomy/modules/forefoot-mri/images/v1/831664d5dc977f2bbf7ba63378d2829db8eb74d9707d1c27ca735f9a25ed2a41?ar=640:670&auto=format,compress&bg=000000&fit=crop&p64=MzM0LDMyMg&t=W-i3luiDjOWKqOiEiV3otr7og4zliqjohIk&tf=Tm90byBTYW5zIFND&tx=334&ty=322&w=200&wk=1&s=f9b82deafefffd8a1cc0c44dd65dbcb6 "[跖背动脉]趾背动脉 - 前足MRI - Coronal PD FS - e-Anatomy")
![[跖背动脉]趾背动脉 - 前足MRI - 冠状T1 - e-Anatomy](https://cdn.imaios.cn/i/imaios-images/web/images/eanatomy/modules/forefoot-mri/images/v1/0035553eb0329a6f07170b0c37a764104ccca523a08fe25bee0acc5707550340?ar=640:670&auto=format,compress&bg=000000&fit=crop&p64=MzMzLDMyNQ&t=W-i3luiDjOWKqOiEiV3otr7og4zliqjohIk&tf=Tm90byBTYW5zIFND&tx=333&ty=325&w=200&wk=1&s=580c93a3d8d4533239fbbe24ce175392 "[跖背动脉]趾背动脉 - 前足MRI - 冠状T1 - e-Anatomy")
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