pericardial septum

例句：

1. 1.The pericardial septum is a thin layer of tissue that separates the heart from the chest wall.
   心包隔是一层薄的组织结构，将心脏与胸壁分隔开。
2. 2.During surgery, the surgeon must carefully incise the pericardial septum to access the heart.
   在手术中，外科医生必须小心地切开心包隔以进入心脏。
3. 3. The pericardial septum plays a crucial role in maintaining the proper functioning of the heart.
   心包隔在保持心脏正常功能方面起着至关重要的作用。