Core body temperature is the temperature of the blood circulating through the

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Cellular metabolism requires a stable core,or "deep body," temperature of a mean of 37.2°C (99° F).Core body temperature is established by the temperature of blood flow through the carotid arteries to the hypothalamus (the body's temperature control center),which triggers the body's physiological response to temperature.The body maintains a steady temperature through a thermostat,or feedback mechanism,regulated by the hypothalamus.The thermostat balances heat production (from metabolism,exercise,food digestion,external factors)with heat loss (through radiation,evaporation of sweat,convection,conduction).An ideal thermometer would accurately measure central brain-stem temperature at the hypothalamus.Invasive procedures that provide temperatures of the arterial blood,esophagus,or bladder are reliable indicators of core temperature,but are impractical.

Core Body Temperature Is the Temperature of the Blood Circulating