在腕后外侧，腕背侧横纹桡侧，桡骨茎突远端，解剖学“鼻烟窝”凹陷中，

注:手拇指充分外展和后伸时,手背外侧部拇长伸肌腱与拇短伸肌腱之间形成一明显的凹陷即是解剖学“鼻烟窝”。

On the posterolateral aspect of the wrist, at the radial side of the dorsal wrist crease, distal to the radial styloid process, in the depression of the anatomical snuffbox.

Note: The depression of the anatomical snuffbox is formed when the thumb is fully abducted and extended between the tendons of the extensor pollicis longus and the extensor pollicis brevis.

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