The Skin (organ)

The skin is the body's largest organ, acting as a protective barrier between internal tissues and the outside environment. It helps prevent infections, prevents excessive water loss, and provides sensory information like touch and temperature. Made up of multiple layers, including the outer epidermis and the inner dermis, skin also produces vitamin D when exposed to sunlight and plays a vital role in regulating body temperature through sweating and blood flow. Overall, skin maintains internal stability, supports immune defense, and reflects overall health.