conducting cardiac muscle fiber

例句：

1. 1. Theconducting cardiac muscle fibers are responsiblefor transmitting electrical signals throughout the heart.
   传导心脏肌肉纤维负责在整个心脏中传递电信号。
2. 2. During exercise, the conductingcardiac muscle fibers work to pump bloodand oxygen to the muscles.
   在运动时，传导心脏肌肉纤维工作以将血液和氧气泵送到肌肉。
3. 3. Atrialfibrillation is a condition in whichthe conducting cardiac muscle fibers becomeuncoordinated, leading to irregular heartbeats.
   房颤是一种情况，其中传导心脏肌肉纤维变得不协调，导致不规则的心跳。