In human endocrine regulation, which hormone is secreted by pancreatic beta cells to lower blood glucose concentration?
Answer and explanation
Correct answer: C. Insulin
- Step 1: Pancreatic beta cells in the islets of Langerhans monitor elevated blood glucose levels. Step 2. They secrete insulin, which stimulates cellular uptake of glucose and glycogen synthesis in the liver. Answer: Insulin. Why not the others: Glucagon is secreted by alpha cells to raise glucose; epinephrine and cortisol also elevate blood sugar.
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