This happens because those muscles are innervated by the recurrent branch, the median nerve, which arises from the median nerve after it passes through the carpal tunnel.
这是因为这些肌肉是由正中神经穿过腕管后的分支所支配的。
Recurrent branch
原声例句
Osmosis-神经
英语百科
Recurrent branch of the median nerve
（重定向自Recurrent branch）
The recurrent branch of the median nerve is the branch of the median nerve which supplies the thenar muscles. It is also occasionally referred to as the thenar branch, or the thenar muscular branch, of the median nerve. In the thenar eminence it provides motor innervation to:
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