And your white blood cells, or leukocytes that scour your circulatory system fighting off infection, they're connective tissue cells, too.

你的白细胞，或者说白细胞在你的循环系统中抵抗感染，它们也是结缔组织细胞。

BUT! There is another class of connective tissue cells that are responsible for an equally important role. And that is: protecting you, from pretty much everything.

但是，还有另外一类结缔组织细胞也起着同样重要的作用，那就是：保护你不受几乎所有东西的伤害。

But rarely, with the right signal from the body, certain cells can change forms. In this case, the turncoats are called cardiac fibroblasts, a type of connective cell, which can become blood vessel cells after an injury.

但在极少数情况下， 通过来自身体的正确信号， 某些细胞可以改变形态。在这种情况下， 外衣被称为心脏成纤维细胞， 一种结缔细胞， 在受伤后可以变成血管细胞。