extensor muscle
US /ɪkˈstɛnsər ˈmʌsl/
UK /ɪkˈstɛnsə ˈmʌsl/
名詞
伸肌
a muscle whose contraction extends or straightens a limb or other part of the body
範例:
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The triceps is an extensor muscle of the elbow.
肱三頭肌是肘部的伸肌。
•
Weakness in the extensor muscles can lead to difficulty in straightening the fingers.
伸肌無力會導致手指伸直困難。