Human Cell

Cells are the basic building blocks of all living things. The human body is composed of trillions of cells. They provide structure for the body, take in nutrients from food, convert those nutrients into energy, and carry out specialized functions. Cells also contain the body’s hereditary material and can make copies of themselves.

细胞是一切生物的基本构建块。人体是由细胞组成万亿。它们提供了结构为体，采取从食物中的营养物质，将那些营养物质转化为能量，并进行专门的功能。细胞也含有人体的遗传物质，可以使自己的副本。

All of the cells in the human body are equally important to life. Depending on how look at it, certain types of cells could be more important. Stem cells are important because all other cells develop from stem cells, hence the reason for the controversial stem cell research. Brain cells, unlike other cells in the human body, don't regenerate. Once human body lose or kill a brain cell, it's gone for good. It's why alcohol and drugs are bad for human body.

Muscle cells, along with bone cells, allow us movement. Some would say that movement is non-essential to human life, but they are very important. Without muscle cells, wouldn't be able to pick anything up. Without bone cells, wouldn't have bones! Imaging that. Tissue cells make up all of our internal organs, and without internal organs, die very quickly. Sure human body can live without some internal organs, but no heart? No lungs? No stomach? Skin cells are our outer covering, our shield. skin protects all of the cells.

所有的细胞在人体内的是对生命同样重要。这取决于如何看待它，某些类型的细胞可能是更重要的。肝细胞是重要的，因为从肝细胞的所有其他细胞发育，因而备受争议的肝细胞研究的原因。脑细胞，不同于其他细胞在人体内，也不能再生。一旦人体内失去或杀死脑细胞，它消失了。这就是为什么酒精和毒品是对人体不好。肌细胞，随着骨细胞，让我们运动。有人会说，运动是无必要的，以人的生命，但他们都非常重要。无肌细胞，就不能挑不出什么了。无骨细胞，不会有骨头！想象一下。组织细胞构成了人体所有的内脏器官，没有内脏，会死的，速度非常快。当然，人体可以生活在没有一些内部器官，但没有心脏？没有肺？无胃？皮肤细胞是我们的外壳，我们的盾牌。皮肤保护着人体细胞。