The primary function of the integumentary system is to protect the body from external damage, infections, and dehydration. This system includes the skin, hair, nails, and associated glands. The skin acts as a barrier against pathogens and harmful substances while also regulating body temperature. It plays a vital role in sensory perception, allowing the detection of temperature, pressure, and pain. Additionally, it aids in the synthesis of vitamin D through sunlight exposure and contributes to the body’s overall homeostasis. The integumentary system is essential for maintaining health and overall well-being.