Insulin release is inhibited by:
Correct Answer: Somatostatin
Description: Somatostatin, secreted by d cells of pancreas, inhibits the other two secretions of the endocrine pancreas - insulin & glucagon. The primary stimulators of the somatostatin are glucose, amino acids, and fatty acids. Parasympathetic nervous system (vagus/Ach) is a stimulator of insulin secretion. Insulin secretion is inhibited by epinephrine acting alpha-2 adrenergic receptors. Amino acids, FFAs, and glucose are the stimulators of insulin secretion.
Category:
Physiology
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