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Blood Flow and Thermoregulation

Posted by WMHT Web Editor on

Whether you like it hot or cold weather, it’s good to know that your body can adjust. It is constantly monitoring its processes to maintain homeostasis—relatively stable and constant internal conditions. Your body automatically responds to changing external conditions – by changing breathing or heart rate, for example – to keep systems working in sync to maintain a healthy internal environment.

This interactive activity adapted from WGBH and the University of Alberta helps students explore heat exchange between the human circulatory system and the environment, and illustrates how the body adapts its blood flow under different conditions. Animations show how peripheral heat loss, counter-current heat exchange and selective vasoconstriction help maintain a healthy core body temperature.


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