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Skin is the largest organ of the body. It is the visible part and covers all organs in our body including muscles, internal organs and flesh. The main functions of the skin include protection of our body from pathogens and water loss, providing sensation, regulating heat and excretion of sweat and urea.Skin has three different layers namely epidermis, dermis and hypo-dermis. Epidermis is the top most layer made up of epithelium and does not have any blood vessels. It forms the protective cover for the body. Beneath epidermis is the dermis. The dermis consists of connective tissue. The sensation of heat, touch etc.

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