![[右心室]后乳头肌 - 心脏 - 腔 - e-Anatomy](https://cdn.imaios.cn/i/imaios-images/web/images/eanatomy/modules/coeur-illustrations/images/v1/01739211c1ba1bc54b0351a3f9f642789d39b19540375460fce624674ca5c064?ar=640:670&auto=format,compress&bg=FFFFFF&fit=crop&p64=NjgyLDEwMTQ&t=W-WPs-W_g-WupF3lkI7kubPlpLTogow&tf=Tm90byBTYW5zIFND&tx=682&ty=1014&w=350&wk=1&s=d96af88fe42966ae1a409dabf7988af3)
[右心室]后乳头肌
Musculus papillaris inferior ventriculi dextri
- 拉丁语近义词： Musculus papillaris posterior ventriculi dextri
定义
右心室下（后）乳头肌起自右心室游离壁的下部，最常见于中三分之一处，形态上通常呈平顶状。其主要向三尖瓣后叶发出腱索，亦可参与供应隔叶的后段。
后乳头肌可为单头或多头，头数不等（从一个到四个不等），其平均长度约为1.4厘米（但存在显著的解剖变异）。
參考資料
右心室下（后）乳头肌起自右心室游离壁的下部，最常见于中三分之一处，形态上通常呈平顶状。其主要向三尖瓣后叶发出腱索，亦可参与供应隔叶的后段。
后乳头肌可为单头或多头，头数不等（从一个到四个不等），其平均长度约为1.4厘米（但存在显著的解剖变异）。
參考資料
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