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What is the function of the skin in protecting the body?
Updated: 11-Apr-2025

The skin is the body’s largest organ and first defense against the outside world. It protects against bacteria, UV radiation, and physical injuries. Skin also helps regulate body temperature through sweat and blood flow.

It contains sensory receptors for touch, temperature, and pain. The skin is made up of layers: the outer epidermis, protective barrier; dermis, with nerves and blood vessels; and hypodermis, containing fat. It also helps produce vitamin D with sunlight exposure

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