Jisho

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膀胱排尿筋
Wikipedia definition
1. Detrusor urinae muscleThe detrusor urinae muscle, also detrusor muscle, muscularis propria of the urinary bladder and (less precise) muscularis propria, contracts when urinating to squeeze out urine. Otherwise, it remains relaxed to allow the bladder to fill. Related are the urethral sphincter muscles which envelop the urethra to control the flow of urine when they contract.
Read “Detrusor urinae muscle” on English Wikipedia
Read “膀胱排尿筋” on Japanese Wikipedia
Read “Detrusor urinae muscle” on DBpedia

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