Pub. date: 2008 | Online Pub. Date: September 15, 2008 | DOI: 10.4135/9781412963954 | Print ISBN: 9781412959087 | Online ISBN: 9781412963954| Publisher:SAGE Publications, Inc.About this encyclopedia
Anam Imtiaz & Muhammad Zeeshan Ali & Tahawur Abbas Khaleeq & Maryam Tirmizi & Jamal Hafiz
BURNS ARE INJURIES to tissues caused by heat, chemicals, radiations, friction, or electricity. Burns injure the skin layers, and they may also injure other parts of the body such as muscles, nerve, lungs, and the eyes. Depending on the severity and depth of tissue damage, burns are classified into various degrees: first—degree burns are superficial thickness burns, extending only into the epidermis (outermost layer of the skin); second—degree burns, which are partial thickness burns, involve the superficial dermis (the layer of the skin deep to the epidermis, consisting of a bed of vascular connective tissue and containing the nerves and organs of sensation, the hair roots, and sebaceous, and sweat glands) and possibly also the deep dermis; third—degree burns are full—thickness burns that include the epidermis, the entire dermis, skin appendages, and at times deeper tissue; finally, in fourth—degree burns, tissue is destroyed to the level of or below the ...