Kinesiology 4437A/B Lecture Notes - Lecture 3: Medical Equipment, Oliguria, Ibuprofen
20 Dec 2017
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Thermoregulatory network: the goal is to maintain body temperature around 37oc. If internal temperature rises, vasodilation, occur to seek cooler environment. If internal temperature falls, vasoconstriction, shivering occur to seek warmer environment. How do we generate or lose heat *: heat loss conduction, convection, radiation and evaporation, heat production- endogenous (muscle activity and metabolism) and exogenous (environment, during exercise, 15-20 times more heat is generated than at rest. Increase in air or fluid movement increases convective heat transfer: up to 40% of heat loss in nude human is convection ** Infrared and solar radiation: objects absorb and reflect radiative heat, solar radiation on a sunny day increases body temperature, on cloudless night, net loss of radiation to the sky, up to 45% heat loss. Thermometer types: **most to least accurate measurement: electronic best, mercury in glass time consuming, skin strip variable + (relies more on outer temp not core)
