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来自维基百科,自由的百科全书
節制索(moderator band)也稱為隔緣肉柱(septomarginal trabecula)是右心室內由前乳頭肌根部橫過室腔到室間隔下部的一條肌束。[1][2][3]
節制索很重要,因為它將房室束(atrioventricular bundle)的右束支的一部分帶到前乳頭肌。這種穿越心室腔的捷徑確保了左右兩心室的傳導時間相等,從而使前乳頭肌協調收縮[4]。
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