extensor muscle
US /ɪkˈstɛnsər ˈmʌsl/
UK /ɪkˈstɛnsə ˈmʌsl/
名词
伸肌
a muscle whose contraction extends or straightens a limb or other part of the body
示例:
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The triceps is an extensor muscle of the elbow.
肱三头肌是肘部的伸肌。
•
Weakness in the extensor muscles can lead to difficulty in straightening the fingers.
伸肌无力会导致手指伸直困难。