ANSC 3080 Lecture Notes - Lecture 1: Aldosterone, Sympathetic Nervous System, Thermoreceptor
17 Dec 2017
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Explain the general concept of homeostatic control systems. Using thermoregulation as an example, explain the integrated response involved in maintaining homeostasis. Definition: the maintenance of a constant (normal) internal environment (example: thermoregulation. We cannot go too high or too low). It is set at the optimum temperature for function of the body (37 c for humans usually). Definition: coordinated responses of organs/systems that automatically compensate for environmental changes. Body temperature, blood pressure, o2/co2 levels (all set at optimum levels). Coordinated response, which means there is more than 1 system. It does not require consciousness to coordinate a response. Mammals and birds are homeotherms (warm blooded animals that maintain a body temperature within narrow limits). Dairy cows produce milk during lactation, so the body is also producing metabolic heat, which shifts the temperature a bit higher. Don"t need to memorize the different temp ranges. Core temperature is the only part of the body that does not fluctuate.
