How does the body's skin temperature regulation system work to maintain a stable internal temperature?

The body's skin temperature regulation system works through a process called thermoregulation. When the body gets too hot, sweat glands release sweat onto the skin, which evaporates and cools the body. When the body gets too cold, blood vessels near the skin constrict to reduce heat loss, and muscles may shiver to generate heat. This helps maintain a stable internal temperature.