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尝试是依赖于压电材料。

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。

And titin is one of three key proteins in our cardiac and skeletal muscle.

肌联蛋白是我们心脏和骨骼肌肉中三大关键蛋白质之一。

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

伤风仅影响骨骼肌，因此，平滑肌和心肌仍能继续工作。

He has managed to reprogram mouse connective-tissue cells so that they develop into cardiac muscle cells, and has tested them in the hearts of mice that have had heart attacks.

他将小鼠结缔组织细胞重新排，使其转变为心肌细胞，然在心脏病小鼠心脏中测试这些细胞功能。

This is kinda like how stretching out a rubber band makes it snap back even harder, except that cardiac muscle is actively contracting whereas the rubber band is passively going back to its relaxed state.

就像皮筋在拉弹回力度更大，只不过心肌是在主动收缩，而皮筋是被动地回到它原本放松状态。

Cardiac muscle tissue is also striped, or striated, but unlike skeletal muscle tissue, their cells are generally uninucleate, meaning that they have just one nucleus.

心脏肌肉组织也有条纹，但与骨骼肌组织不同，它们细胞通常是无核，这意味着它们只有一个细胞核。

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，身体心肌和平滑肌是由自动神经系统控制，而非听从我们直接控制。

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

具有这种蠕动功能肌肉是平滑肌，骨骼肌或心肌则没有该功能。

In addition to cardiac muscle cells, there are crisscrossing connective tissue fibers, which are made of collagen, that together form the fibrous cardiac skeleton, which helps support the muscle tissue.

除心肌细胞外，还存在交叉结缔组织纤维；这些纤维由胶原蛋白构成，它们一起形成纤维性心脏骨架帮助支撑肌肉组织。

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

最，低钾血症会影响心肌收缩，导致心律失常和心搏骤停。

Rhabdomyo refers to striated muscle tissue, or cardiac muscle tissue in this case, so rhabdomyomas are benign tumors of the heart that usually affect the ventricles, and are best considered hamartomas rather than a true neoplasm.

横纹肌指是条状肌肉组织，这里就指心肌；横纹肌瘤是良性肿瘤，且通常累及心室，最好被认为错构瘤而非肿瘤。

Your heart is so important that it gets its very own muscle tissue type — cardiac muscle, which looks striped, or striated, and also functions involuntarily to keep your blood pumping without you having to think about it.

你心脏是如此重要以至于它有自己肌肉组织类型——心肌，看起来是条纹状，它也不由自主地起作用来保持你血液流动，而你不用去想它。

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。

They're striated like cardiac muscle tissue, but they're also mostly voluntary, meaning you have to think about using them and activate them with your somatic nervous system.

它们像心肌组织一样有条纹，但也大多是自愿，这意味着你必须考虑使用它们，并用你躯体神经系统激活它们。

Either way, the high potassium levels leads to issues with muscle contractions, which could be issues with the smooth, skeletal, or cardiac muscles.

无论哪种方式，高钾血症可以导致肌肉收缩问题，可能是平滑肌细胞、骨骼肌细胞或心肌细胞。

Now this can be a cell that's part of the conduction system or it can just be another cardiac muscle cell.

这个细胞可能属于传导系统一部分，或只是一个心肌细胞。

Your autonomic system is the branch of your peripheral nervous system that regulates the functions of your internal organs, like your heart and stomach, and also controls your smooth and cardiac muscles, and your glands.

你自主神经系统是你周围神经系统分支，它调节你内部器官功能，比如你心脏和胃，也控制你平滑肌和心肌，以及你腺体。

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

两种途径低钾水平都会导致肌肉收缩问题，可累及平滑肌、骨骼肌或心肌。

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

另一方面，你心肌组织是不由自主地工作。