KIN 155 Lecture Notes - Lecture 20: Eccrine Sweat Gland, Thermogenesis, Cardiorespiratory Fitness
18 Mar 2016
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Document Summary
Chapter 12: exercise in hot and cold environments: body temperature regulation, thermoregulatory control. Thermoregulation: the process by which the thermoregulatory center in the hypothalamus readjusts body temperature in response to small deviations from the set point; mechanism to maintain temperature. Acclimation: a short term adaptation to the environment (a few days) Acclimatization: natural adaptations gained over long periods of time (months/years) (e. g. climbing a mountain: humans are homeotherms - human"s internal body temperature is physiologically regulated to keep it nearly constant even when the environment temperature changes. Conduction: heat transfer from two things in physical contact with each other e. g. heat lost from the body when the skin touches a cold chair. Convection: transferring heat by the motion of a gas or a liquid across the heated surface e. g. blowing on hot soup to cool it. Radiation: the transfer of heat through electromagnetic waves e. g. heat from the sun warms the skin without direct contact.
