Erin Allman-Updike

And it's made up of several different layers.

The top layer, the outside, what you're touching and what you see is called the epidermis.

And this is very, very thin layer.

Right.

And it differs in thickness depending on where on your body.

So it's a lot thicker in places like the soles of our feet and our back.

And it's a lot thinner in places like, say, your eyes or, you know, the backs of your hands or things like that.

Underneath the epidermis is the dermis.

And this is the layer that has a lot of structure to it.

It's a little bit thicker, still only on the order of millimeters.

But the dermis is underneath that.

And then underneath the dermis is a layer of subcutaneous tissue.

So this is like fat and things like that.

And then below that is when we get to muscles and bones.

So the degree of a burn depends on how far through that skin layers, through those layers of skin we actually get.

A superficial burn or a first degree burn is one that burns only the uppermost layer, the epidermis.

This you can think of as a bad sunburn.

Right.

A blister type of a thing?

Well, no.