circumflex fibular branch

例句：

1. 1.The circumflex fibular branch is a critical part of the human body's immune system.
   圆周纤维分支是人体免疫系统中至关重要的部分。
2. 2. The circumflex fibular branch plays a vital role in maintaining blood flow to the lower extremities.
   圆周纤维分支在维持下肢血流方面起着至关重要的作用。
3. 3. The circumflex fibular branch is responsible for transporting nutrients and oxygen to the muscles and organs in the lowerbody.
   圆周纤维分支负责将营养物质和氧气输送到下肢的肌肉和器官。