Which hormone raises blood glucose levels?

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Prepare for the CIEMT Medical and Physiology Exam. Study with flashcards and multiple-choice questions that feature explanations. Ace your test!

Multiple Choice

Which hormone raises blood glucose levels?

Explanation:
Glucagon raises blood glucose by signaling the liver to release glucose. When blood sugar falls, pancreatic alpha cells secrete glucagon, which triggers glycogenolysis (breakdown of glycogen to glucose) and gluconeogenesis (production of glucose from non-carbohydrate sources). This puts more glucose into the bloodstream and raises blood glucose levels. Insulin does the opposite, promoting glucose uptake and storage. Polyphagia is increased hunger, not a hormone, and anaphylaxis is a severe allergic reaction, not a glucose-regulating hormone.

Glucagon raises blood glucose by signaling the liver to release glucose. When blood sugar falls, pancreatic alpha cells secrete glucagon, which triggers glycogenolysis (breakdown of glycogen to glucose) and gluconeogenesis (production of glucose from non-carbohydrate sources). This puts more glucose into the bloodstream and raises blood glucose levels. Insulin does the opposite, promoting glucose uptake and storage. Polyphagia is increased hunger, not a hormone, and anaphylaxis is a severe allergic reaction, not a glucose-regulating hormone.

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