Integumentary System The Integumentary system consists of the skin and its accesory structures and the hypodermic tissue. The two major layers of the skin are the outer circumvent and the internal dermis. Epidermis- make of stratified squamous epithelium; cells called ceratinocytes. 1. Stratum Germanitivum- the inward most layer where mitosis takes place; new cells produce ceratin and die as they are pushed to the surface. 2. Stratum Corneum- the outermost layers of dead(a) cells; keratin prevents loss and entry of water and resists entry of pathogens and chemicals. 3.
Langerhans Cells- phagocytize extraneous square and stimulate an immune response by lymphocytes. 4. Melanocytes- in the dismount epidermis, produce melanin. UV rays stimulate melanin production; melanin prevents besides ikon to the stratum germanitivum to UV rays by darkening the skin. Dermis- made of unrhythmical fibrous tissue; collagen provides strength, and elastin provide...If you want to get a good essay, order it on our website:
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