What is the primary function of the integumentary system?

The primary function of the integumentary system is protection and regulation. This system includes the skin, hair, nails, and associated glands, making it the largest organ system in the body. Its protective functions are vital as it acts as a barrier against environmental factors such as pathogens, harmful chemicals, and UV radiation. Additionally, the integumentary system plays a critical role in regulating body temperature through processes such as sweating and altering blood flow to the skin. It also helps in sensation, allowing the body to respond to external stimuli such as touch, pain, and temperature changes. Thus, the integration of these functions is essential for maintaining overall health and homeostasis in the body.