Essay on Bacterial Infection Of The Skin And Subcutaneous Tissues

1071 Words Nov 4th, 2015 null Page
“A spreading bacterial infection of the skin and subcutaneous tissues, usually caused by streptococcal or staphylococcal infections in adults (and occasionally by Haemophilus species in children). It may occur following damage to skin from an insect bite, an excoriation, or other wound. The extremities, esp. the lower legs, are the most common sites.” (Venes, 2013, p.433)

Skin is that largest organ of the body and works to protect our bodies from infection. Our skin is composed of several different layers. The epidermis is the most superficial layer. It is squamous epithelium and does not have blood flow directly in this layer, but rather is composed of keratinocytes, melanocytes, langerhan cells, and Merkel cells. The Keratinocytes are the dead cells that slough off. Melanocytes provide our skin with color because they produce a pigment that helps control radiation exposure from the sun. Langerhan cells work along with the immune system. The will signal the immune system when a foreign object (aka bacteria) invade the skin; these cells are important for fighting off infection.
The Dermis is the second layer or protector of the skin. It is mostly made up of fibroblasts and works to support the epidermis. Other immune cells are in this layer and the fibroblasts produce collagen and elastin fibers.
The last layer of the skin involves the cutaneous layer. This layer is where blood supply enters.
Normally these layers work together to protect the skin from bacteria by…

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