MICROANATOMY

Detailed explanation-1: -Third-degree burns destroy the epidermis and dermis. They may go into the innermost layer of skin, the subcutaneous tissue. The burn site may look white or blackened and charred.

Detailed explanation-2: -Fourth-degree burns. Fourth-degree burns go through both layers of the skin and underlying tissue as well as deeper tissue, possibly involving muscle and bone. There is no feeling in the area since the nerve endings are destroyed.

Detailed explanation-3: -A third-degree burn is extremely serious; the entire thickness of the skin is destroyed, along with deeper structures such as muscles. Because the nerve endings are destroyed in such burns, the wound is surprisingly painless in the areas of worst involvement.