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

之前使用心脏肉能量运行起搏器的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.

白是我们心脏和骨骼肉中的三大关键白质之一。

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

破伤风仅影响骨骼，因此，平滑和心仍能继续工作。

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，使其转变为心细胞，然后在心脏病小鼠的心脏中测试这些细胞的功能。

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.

就像皮筋在拉张后的弹力度更大，只不过心是在主动收缩，而皮筋是被动它原本放松的状态。

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.

心脏肉组织也有条纹，但与骨骼组织不同，它们的细胞通常是无核的，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.

与骨骼不同，身体的心和平滑是由自动神经系统控制，而非听从我们的直接控制。

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

具有这种蠕动功能的肉是平滑，骨骼或心则没有该功能。

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.

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

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.

横纹指的是条状的肉组织，这里就指心；横纹瘤是良性肿瘤，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.

你的心脏是如此重要以至于它有自己的肉组织类型——心，看起来是条纹状的，它也不由自主起作用来保持你的血液流动，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.

它们像心组织一样有条纹，但也大多是自愿的，这意味着你必须考虑使用它们，并用你的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，高钾血症可以导致肉收缩问题，可能是平滑细胞、骨骼细胞或心细胞。

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的一部分，或只是一个心细胞。

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.

你的自主神经系统是你周围神经系统的分支，它调节你内部器官的功能，比如你的心脏和胃，也控制你的平滑和心，以及你的腺体。

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肉收缩的问题，可累及平滑、骨骼或心。

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

另一方面，你的心组织是不由自主工作的。