Previous attempts to use cardiac muscle power to run pacemakers relied on piezoelectric materials.

之前使用心脏肌肉能量运行起搏器的尝试是依赖于压电材料。

Your cardiac muscle tissue, on the other hand, works involuntarily.

另一方面，你的心肌组织是不由自主地工作的。

Tetanus only affects skeletal muscle, so smooth muscle and cardiac muscle continue to function normally.

破伤风仅影响骨骼肌，因此，平滑肌和心肌仍能继续工作。

This forms the bulk of the heart tissue, because those cardiac muscle cells contract and pump blood.

他们构成了大部分心脏组织，这是因为心肌细胞能收缩，从而实现泵血。

Hyperkalemia, though, also affects cardiac muscle contractions, which can lead to cardiac arrhythmias and cardiac arrest.

高钾血症，也可以影响心肌细胞收缩，进而导致心律失常和心脏停搏。

Finally, hypokalemia can affect cardiac muscle contractions, which can lead to cardiac arrhythmias and cardiac arrest.

最后，低钾血症会影响心肌收缩，导致心律失常和心搏骤停。

Blood flow is cut off to the cardiac muscle and the oxygen-starved cells start to die within several minutes.

通往心肌的血流被阻断在几分钟内缺氧的细胞开始死亡。

The type of muscle that causes these contractions is smooth muscle, as opposed to skeletal muscle or cardiac muscle.

具有这种蠕动功能的肌肉是平滑肌，骨骼肌或心肌则没有该功能。

Low potassium levels leads to issues with muscle contractions, which could be smooth, skeletal, or cardiac muscles.

两种途径的低钾水平都会导致肌肉收缩的问题，可累及平滑肌、骨骼肌或心肌。

Unlike the skeletal muscles, the body's cardiac and smooth muscles are managed by the autonomic nervous system beyond our direct control.

与骨骼肌不同，身体的心肌和平滑肌是由自动神经系统控制，而非听从我们的直接控制。