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Related Flashcards
Cards In This Set
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What are the four vital signs
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Temperature, Pulse Rate, Respiratior Rate and blood pressure
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What is Body temperature
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The difference between the heat produced by the body process and amount of heat lost to the environment
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Thermoregulation
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Mainteanance of acceptable range is regulated by neurological and cardivasular mechanism
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Hypothalamus
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Is the control center for the regulation of temperature
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Anterior Hypothalamus
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Controls heat loss
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Posterior Hypothalamus
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Controls heat production
When the P.H senses body temperature is lower than set point; heat conservation mechanism are instutited
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What is the mechanism of heat loss
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Sweating, vasolidation, inhibition of heat production
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What is the mechanism of heat production
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Vasoconstriction, volunatry muscle contraction and muscle shivering
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What is Piloerection
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Erection of hair follicles to provide insulation
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Heat Production
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Basal metabolic rate, shivering and non-shivering themogenesis
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Heat Loss
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Radiation, conduction, convection, evaporation and diaphoresis
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Radiation
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Transfer of heat from the surface of one object to anothe without direct contact between the two
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Conduction
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Transfer of heat from one object to another by direct contact
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Convection
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Transfer of heat away by air movement
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Evaporation
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Transfer of heat energy when a liquid is changed to a gas (from 600-900ml/day from lungs and skin)
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