Physiology.
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The Integumentary system, more known as the skin system is the largest system of the body, with a surface area of at least 18 square feet. Its functions are to protect the internal structures of the body from pathogens, and other dangerous substances to the body. It controls all body temperature and is a main producer of Vitamin D. The main components of the skin are in layers. They are divided into three main layers, as shown in the diagram to the left.
Types of Cells
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Keratiocytes produce kertin, which is a protein that makes the skin strong,
gives it it's flexibility and makes it waterproof. Melanocytes produce melanin,
the dark pigment that gives skin its color. Science is still not positive on what
Merkel's cells are for but they are most likely for sensory reception (TOUCH).
Langerhan's cells help the immune system by processing foreign bodies. The
lowest layer of the Epidermis (stratum basale), which is the gap between the
dermis and the epidermis stratum. Basale cells divide continuously. As new form, older skin is moved to the surface of the skin (dead skin).
gives it it's flexibility and makes it waterproof. Melanocytes produce melanin,
the dark pigment that gives skin its color. Science is still not positive on what
Merkel's cells are for but they are most likely for sensory reception (TOUCH).
Langerhan's cells help the immune system by processing foreign bodies. The
lowest layer of the Epidermis (stratum basale), which is the gap between the
dermis and the epidermis stratum. Basale cells divide continuously. As new form, older skin is moved to the surface of the skin (dead skin).
Video
![Picture](/uploads/1/9/6/7/19675001/3123218.png)