The integumentary system helps regulate body temperature through its tight association with the sympathetic nervous system, the division of the nervous system involved in our fight-or-flight responses.
When temperatures rise, the body reacts by increasing blood flow to the skin’s surface, taking the heat from within the body to the surface. This means sweat. As the sweat evaporates, the body cools down.
When the temperature Drops, the body reacts by moving the blood to the center of the body and the skin creates chill bumps and sucks in heat to regulate the temperature
The integumentary system has sensory receptors that can distinguish heat, cold, touch, pressure, and pain. The skin and its derivatives (sweat and oil glands, hair and nails) serve a number of functions, mostly protective
