掌浅弓（arcus palmaris superficialis）和掌深弓（arcus palmaris profundus）由尺、桡两动脉到掌部的分支吻合而成，这两个动脉弓的分支首要漫衍于手心及手指头
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... 椎弓 Arcus vertebræ 掌深弓 Arcus volaris profundus 掌浅弓 Arcus volaris superficialis ...
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... deep veins of upper limb 上肢深静脉 deep volar arch 掌深弓 deferential artery 输精管动脉 ...
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掌深弓除传统介绍外尚见到由桡动脉和小指尺侧动脉分支所形成。
The deep palmar arch, besides the traditional (view-point), also consists of the branches of the redial artery and the ulnaris digiti minimi artery.
结论小指对掌肌腱弓可以卡压尺神经深支，引起除小鱼际肌以外的尺神经支配的所有手内在肌的功能障碍。
Conclusion We found that the fascial arch of the opponens digiti minimi can compress the deep branch of the ulnar nerve causing motor deficit of the intrinsic muscles of hands.
此后，两个分支从尺动脉有助于形成浅表和掌深动脉弓。
Thereafter, the two branches from the ulnar artery contributed to form the superficial and deep palmar arterial arches.
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