cardiac nerve

例句：

1. 1.The heart's cardiac nerves can be stimulated by exercise to improve blood flow.
   心脏的心脏神经可以通过锻炼来刺激，以改善血流。
2. 2.Cardiac nerves play a crucial role in the regulation of heart rate and blood pressure.
   心脏神经在调节心率和血压方面起着至关重要的作用。
3. 3. During surgery, doctors often need to monitor the cardiac nerves to ensure proper functioning of the heart.
   在手术期间，医生经常需要监测心脏神经，以确保心脏的正常功能。