Fever And Hyperthermia
Fever is an elevation of body temperature that exceeds the normal daily variation and occurs in conjunction with an increase in the hypothalamic set point. just like the thermostat of a room is set up its the same way the shift from normothermic to the new set point. Many processes take place during this: a. Vasomotor center in the brain is activated. b. Vasoconstriction commences. First in the hands and the feet which leads to stopped blood flow in periphery. c. This decreases heat loss from the skin and thus person feels cold. To compensate this some processes take place: a. Shivering which increases the heat production from the muscles start to happen. b. Shivering might not happen if heat conservation mechanisms are going on. c. Non-shivering mechanism like heat production from the liver may help by keeping increased ...