What Are the Functions of Integumentary System?
The integumentary system is composed of the skin, hair, sweat glands, follicles, heat receptors and cold receptors. The integumentary system has a number of functions, many of them related to maintaining homeostasis (a stable internal environment).
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Immune Support
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The integumentary system acts as a first line of defense against microorganisms such as viruses and bacteria.
Temperature Regulation
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The skin also assists in the regulation of body temperature through sweating, which can serve to cool the body, or by provoking shivering which can raise the body temperature.
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Protection
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The integumentary system serves to protect the underlying tissues from exposure to the elements. It also provides a barrier against ultraviolet light by way of pigmentation.
Sensory Perception
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The skin registers a variety of sensations ranging from pain to pressure and temperature (particularly cold).
Vitamin D
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The integumentary system is also partially responsible for the production of vitamin D, which is necessary for healthy bone development in children.
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