INTEGUMENTARY SYSTEM

                                            Injury and Healing

-Caused by sharp objects, heat, excessive pressure or friction

-Healing

         *A blood clot is formed

                   -Stops bleeding and scabs over

         *Fibroblasts divide, creating granulation tissue

         *Capillaries provide increased blood flow

         *Immune cells attack any infection

                                                 Burns

-Occurs when skin is damaged by intense heat, radiation, electricity, or chemicals

-Results in loss of fluid and cell death, dehydration, electrolyte imbalance, and renal and circulatory failure

-Burned skin is vulnerable to bacteria

-Measuring System

*First Degree Burn

   -Only affects epidermis

   -Heal on their own in a few days

*Second Degree Burn

    -Affects part of the dermis

    -Blistering of the skin

    -Will heal within a few weeks

*Third Degree Burn

    -Affects nerve endings

    -May appear black, white, or red

    -Will heal slowly without medical attention

*Fourth Degree Burn

    -Affects the muscle

    -Cannot be healed by the body

         *Undamaged skin is grafted over burn site