Liver and Pancreas Functions · Physiology

Within the Islets of Langerhans, which cells are responsible for secreting Somatostatin, and what is its effect on the pancreas?

  1. Alpha cells that raise glucagon release rates
  2. Beta cells that raise insulin secretion rates
  3. Delta cells that inhibit insulin and glucagon
  4. PP cells that stimulate exocrine pancreatic secretion
Show answer and explanation

Correct answer: Delta cells that inhibit insulin and glucagon

Delta cells secrete somatostatin, which acts as a paracrine inhibitor. It locally suppresses the secretion of both insulin and glucagon, as well as inhibiting pancreatic exocrine function.

Difficulty: Medium Question 38 of 40

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