Your skin is the largest and heaviest organ in your body. Your integumentary system is an organ that consists of a few main structures: skin, nails, hair and glands, along with the nerves and blood vessels that support them. It also helps regulate your body temperature and allows you to feel skin sensations like hot and cold. Your integumentary system acts as a physical barrier - protecting your body from bacteria, infection, injury and sunlight. It’s made up of your skin, nails, hair and the glands and nerves on your skin. Your integumentary system is your body’s outer layer. It’s your body’s outer layer and first line of defense against bacteria and injury. Your integumentary system consists of your hair, skin and nails.
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