Thermoregulation Flashcards
abnormal lowering of body temperature below 95F, usually caused by prolonged exposure to cold
Hypothermia
Situation in which body temperature exceeds the set point
Hyperthermia
Abnormal condition caused by depletion of body fluid and electrolytes resulting from exposure to intense heat or the inability to acclimatize heat
Heat exhaustion
Continued exposure to extreme heat that raises the core body temperature to 105F or higher
Heat stroke
Abnormal elevation of the temperature of the body because of disease; same as fever
Pyrexia
Elevation in the hypothalamic set point so that body temperature is regulated at a higher level
Fever
Transfer of heat from the body to another object without direct contact
Radiation
Transfer of heat from the body to another object with direct contact; body makes contact with materials cooler than skin temperature resulting in heat loss
Conduction
Transfer of heat away by air movement; A fan, wind, etc. moves heat away from the body resulting in heat loss
Convection
Transfer of heat energy when a liquid is changed to a gas; body sweats resulting in heat loss
Evaporation
Increases blood flow from the internal organs to the skin to increase radiant heat loss
Vasodilation
Body temperature of acceptable temperature values; 96.8F
Normothermia
Permanent circulatory and tissue damage from exposure to subnormal temperatures; injured area becomes white, waxy, firm to the touch, and has loss of sensation
Frostbite
Extremely high body temperature
Hyperpyrexia
Fever-producing agents of external origin; bacteria, viruses, etc.
Exogenous pyrogens