Pathophysiology body temperature is determined by two opposing processes heat production heat loss They are regulated by the central nervous system Energy in the form of heat is generated by living tissues(thermogenesis) Energy may be passively absorbed from the environment and transfer the energy to the surrounding mediumPathophysiology •Body temperature is determined by two opposing processes heat production heat loss • They are regulated by the central nervous system • Energy in the form of heat is generated by living tissues (thermogenesis) • Energy may be passively absorbed from the environment and transfer the energy to the surrounding medium