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| posterior interventricular branch (在房室交点处起自右冠状动脉，沿后室间沟下降，常在后室间沟下1/3处与左冠状动脉的前室间支吻合。后室间支分布于室间隔后 1/3部和左、右心室的膈壁。有时后室间支短小，粗大的左室后支或右缘支进入后室间沟的中份，分布于室间隔中1/3的下部) | |||
| posterior interventricular branch | |||
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