What organ systems interact to maintain a steady internal body temperature?

The integumentary, muscular, and circulatory systems work together to maintain a steady internal body temperature. The integumentary system, through the skin, regulates heat loss and sweat production. The muscular system generates heat through shivering when temperatures drop. Additionally, the circulatory system helps distribute heat throughout the body and can adjust blood flow to the skin to either release or retain heat as needed.