The skin consists of three different layers that protect against viruses and bacteria entering the body. These are:
the epidermisthe dermishypodermis or subcutaneous tissueThe epidermisThis is the visible outer layer of skin that helps regulate temperature and protect the body. It does not contain any blood vessels.
Superficial or first-degree burns only affect the epidermis, which remains intact. Often treatable at home, a first-degree burn is the least severe.
The dermisThe dermis is the lower level of the skin. Called the papillary region, it consists of collagen, nerve endings, sweat glands, and elastic fibers. It is also the thickest layer of skin, providing flexibility and strength.
A second-degree burn is one that reaches the dermis. This is more serious than a first-degree burn.
Hypodermis or subcutaneous layerThis consists of adipose tissue that stores energy in the form of fat. It is also connective tissue that cushions and insulates the body.
Any burn that destroys all layers of the skin and reaches the hypodermis is a third-degree burn. Third-degree burns are severe and require immediate medical attention.