What is the integumentary system?

The integumentary system refers specifically to the skin and its associated structures, which include hair, nails, and associated glands. It serves several critical functions, including protecting the body from external harm, regulating body temperature, providing sensory information, and synthesizing vitamin D. The skin acts as a barrier against pathogens and helps in the regulation of fluid balance and temperature through mechanisms like sweat production. Understanding the integumentary system is essential for estheticians, as they work closely with the skin in various treatments and procedures aimed at improving skin health and appearance. This knowledge allows them to make informed decisions about product ingredients, treatment methods, and skincare routines tailored to individual needs.