EMT Practice Test

Answer: D - The body regulates itself by means of heat loss by convection, conduction, and respiration. Convection is the body heat lost to surrounding air. Conduction is body heat loss to surrounding objects through direct physical contact. Respiration is body heat loss through he process of breathing. The body also looses heat through radiation and evaporation; however, these are not considered a “loss” per se. Radiation is the transfer of heat from the surface of one object to another without physical contact. Evaporation is when body heat causes perspiration, which is lost from the surface of the body when changed from liquid to vapor.