The skin is the on the outside covering of the body. In humans, it is the major organ of the integumentary system made up of several layers of ectodermal tissue, as well as guards the underlying bones, ligaments, muscles and internal organs. Human skin is alike to that of most other mammals apart from that it is not protected by a pelt as well as appears hairless though in fact nearly all human skin is covered with hair follicles. There are two universal types of skin, hairy plus glabrous skin. The adjective cutaneous literally resources "of the skin" (from Latin cutis, skin).for the reason that it interfaces by the environment, skin plays a type role in protecting (the body) against pathogens. and excessive water loss. Its other functions are temperature regulation, insulation, sensation, synthesis of vitamin D, moreover the protection of vitamin B folates. harshly damaged skin will try to heal by forming scar tissue. This is frequently discolored and depigmented.
In humans, skin pigmentation differ among populations, moreover skin type be alive capable of range from dry to oily. Such skin variety profers a well-heeled as well as diverse habit for bacteria which number roughly a 1000 species as of 19 phyla.