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The integumentary system is the body's largest organ system, comprising the skin, hair, nails, and glands. It plays a vital role in protecting the body from external elements, regulating temperature, and providing sensory information. This complex system acts as a barrier against pathogens, helps prevent water loss, and produces vitamin D when exposed to sunlight. Understanding the structure and functions of the integumentary system is essential for recognizing its importance in overall health and well-being.
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