Burns (First Aid) »
Introduction to burns
The skin has an important role to play in the fluid and temperature
regulation of the body. If enough skin area is injured, the ability to maintain
that control can be lost. The skin also acts as a protective barrier against the bacteria and
viruses that inhabit the world outside the body.
The anatomy of the skin is complex, and there are many structures within the
layers of the skin. There are three layers:
- Epidermis, the outer layer of the skin
- Dermis, made up of
collagen and elastic
fibers and where nerves, blood vessels, sweat glands, and hair follicles reside.
- Hypodermis or subcutaneous tissue, where larger blood vessels and nerves
are located. This is the layer of tissue that is most important in temperature
regulation.
The amount of damage that a burn can cause depends upon its location, its
depth, and how much body surface area that it involves.
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