After a meal, carbohydrates are broken down into glucose, causing blood sugar levels to rise. Released by the beta cells of the pancreas in response to elevated blood glucose, insulin acts as a key that unlocks cells, allowing glucose to enter and be used for immediate energy.
How Insulin and Glucagon Hormones Regulate Blood Sugar
Its primary function is to prevent hypoglycemia by stimulating glycogenolysis—the breakdown of stored glycogen into glucose in the liver. Glucagon: The Catabolic Guardian In contrast, glucagon is secreted by the alpha cells of the pancreas when blood sugar levels dip, such as during exercise or between meals.
Conversely, when hours pass between meals or during intense physical activity, blood sugar begins to drop, triggering the release of glucagon. This spike is not a disruption but a signal, prompting the pancreas to release insulin.
How Insulin and Glucagon Hormones Regulate Blood Sugar
Insulin: The Anabolic Manager Insulin is often characterized as the "storage" hormone due to its role in facilitating nutrient uptake. Interplay and Clinical Significance The relationship between insulin and glucagon is a perfect example of endocrine homeostasis.
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