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来自维基百科，自由的百科全书
逼尿肌（英語：detrusor urinae muscle，或detrusor muscle），是膀胱內壁上的平滑肌。逼尿肌在舒張時可使膀胱存儲尿液，收縮時可使膀胱排出尿液。[1]尿道括約肌包裹著尿道，在逼尿肌收縮時可控制尿流。
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