Which action is mainly produced by insulin?
Correct answer: C. Lowering blood glucose by promoting cellular uptake
- A. Raising blood glucose by breaking down glycogen
- B. Increasing blood calcium by stimulating bone breakdown
- C. Lowering blood glucose by promoting cellular uptake
- D. Increasing heart rate by stimulating sympathetic activity
Explanation
Insulin, released by pancreatic beta cells, lowers blood glucose by helping cells take up glucose and by promoting glycogen formation. Glucagon has the opposite main effect and raises blood glucose.
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About Endocrine System
The endocrine system covers hormone-producing glands including the pituitary, thyroid, parathyroids, adrenals, pancreas, pineal gland, ovaries and testes. It explains hormone classes, target-cell responses, feedback control, and the functions of hormones such as insulin, thyroxine, cortisol, growth hormone and ADH, which is often confused with a kidney-produced substance.
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40 free Endocrine System MCQs from Anatomy and Physiology for Nursing, each with the correct answer and an explanation. Unlimited attempts, no account needed.
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