The Integumentary system has about six major functions, these functions are: Protection, Thermoregulation, Metabolic Function, Blood Supply, Excretion and absorption and Cutaneous Sensation. I will go over them, some will have multiple functions that connect so there will not be 6 different categories.
First is the Protection, by the skin. The Integumentary protects the internal organs an tissues with skin, the skin helps from infection. Infection occurs once the skin has been cut open.
Thermoreguation is the body regulation with temperature. Skins blood supply helps to regulate body temperature. Sweating releases heat and cools the body down.
Absorption and excretion is of some parts. Eccrine gland is the major sweat gland and does both. Apocrine is produces as a factor of mating and is the produce of pheromones.
Metabolic and Cutaneous sensation: Cutaneous is of receptors and sensors for such things as pain. Metabolic is for the production of Vitamin D in the body.
The Layers of the Integumentary are: Epidermis, Dermis, and Accessory structures. The Epidermis is the outermost layer and has the waterproof protective barrier to keep out bacteria. Dermis contains the sensors and sweat glands. Accessory structures are like the nail which protects the tips of hand and feet. Hair is a form of skin and can be for warmth.
Healing a Wound is a slow process consisting of 4 phases. The events of each phase have to happen in a precise and regulated manner. Any disturbance in the process can lead to slowed down wound healing. Wound healing involves six different events, such as homeostasis; number 2, inflammation; 3, cell differentiation; 4, angiogenesis; 5, re-growth of epithelial tissue over the wound surface; and 6, Microfluidic alignment of collagen fibers to provide strength to the healing tissues.
Work Cited: "Thermoregulation - Boundless Open Textbook." Boundless. N.p., n.d. Web. 13 Dec. 2016. Guo, S., and L.A. DiPietro. "Factors Affecting Wound Healing." Journal of Dental Research. SAGE Publications, 2010. Web. 13 Dec. 2016.