Phases of Wound Healing

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Medical authorities often describe wound healing in terms of overlapping phases that occur in the days, weeks and months following an injury. These phases are hemostasis, inflammation, proliferation and maturation. Hemostatsis is commonly included as a component of the inflammation phase. It is the body’s attempt to quickly stop bleeding without unnecessarily disrupting blood flow. Injuries are unique and the healing process for those injuries varies depending on a number of factors including the depth, size, type and location of the wound. The presence in duration of infection and the health and age of the person injured. So, generally speaking, when the skin in injured, for example, by a cut or a puncture wound, after the bleeding is stopped, a blood clot is left within the tissue and a scab will usually form over the wound in the first few days.
The beginning of the inflammation phase is marked by the migration of white blood cells into the wound. During the first few days after the injury, the body tries to clean up the wound site. Bacteria, dirt and damaged cells, as well as other types of debris, can be present in the wound. White blood cells called neutrophils migrate from the blood stream, through the tissue and into the wound. These cells begin to engulf and digest the contaminants. This migration of cells from the bloodstream to the wound begins at the capillaries. Capillaries are the tiny vessels that connect the very small arteries to the very small veins. As the blood passes from the small artery through the capillaries and into the small vein, oxygen and nutrients are delivered to the tissue and carbon dioxide and other waste products are absorbed and carried away. The migration of t...

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... end of the maturation phase, the wound is permanently sealed with collagen-rich scar tissue that has little of the vibrant cell activity present at the proliferant phase.
To sum up …I’ve written and touched on the four phases of wound healing and seen how the wound is cleaned during the inflammation phases. How the clot is replaced with granulation tissue and a new covering of the dermal cells in the proliferation phases and how the wound is eventually closed and sealed by the end of the maturation phase.

Works Cited

Library and Information Resources Network, Inc. (n.d.). Retrieved from http://search.proquest.com.ezp-02.lirn.net/docview/195969294/14348A6DC835938A65C/2?accountid=158801
Clifforth, S. R. (2007). ABC of wound healing. edited by keith harding and joseph grey. World Journal of Surgery, 31(6), 1364. doi:http://dx.doi.org/10.1007/s00268-007-9026-2

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