How does your skin grow back when you get a cut or injury? How does your body know?

Question

How does your skin grow back when you get a cut or injury? How does your body know?

In: Biology

Answer 1

[Skin](https://s3-us-west-2.amazonaws.com/courses-images/wp-content/uploads/sites/1223/2017/02/08005456/502_Layers_of_epidermis-1024×810.jpg) always grows, outwards, because it’s composed of cells and they divide / multiply (a lot), then eventually die, and the younger layers push the “older” layers outwards.