Heat generation and loss in the human body, mechanisms of control and extreme heat and cold responses.

The topic I have chosen to look at in this essay is to "discuss the principal ways in which heat is gained by and lost from the body, and explain the various mechanisms involved in regulation of body temperature. Briefly indicate how excessive cold and heat affect the body". The body gains and loses heat through the external environment by radiation, conduction, convection and evaporation of water. These are all physical mechanisms known to the …

…and loss consciousness can occur. In serve cases death may occur or signs similar to death will be apparent (Potter & Perry 1995). Control of body temperature is essential for the maintenance of the body tissues & organs and efficient energy utilisation this is important as this allows us to live in a broad selection of environments. This also allows humans to partake in various activities without excess heat or cold causing problems or ceasing activity.