Another example of homeostasis in humans is the regulation of blood glucose levels. The body maintains stable blood glucose levels through the actions of hormones like insulin and glucagon.
When blood glucose levels rise after eating, the pancreas secretes insulin, which facilitates the uptake of glucose by cells for energy or storage as glycogen in the liver and muscles. Conversely, when blood glucose levels drop, the pancreas releases glucagon, which stimulates the liver to convert glycogen back into glucose and release it into the bloodstream. This regulation ensures that cells have a constant supply of energy, maintaining homeostasis in the body.
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