Physiology Sympathetic stimulation of nerves innervating the islets of the pancreas will: A Have no effect B Increase secretion of insulin from B cells C Decrease secretion of insulin from B cells D Increase secretion of glucagon from A cells 💡 Explanation Sympathetic stimulation of nerves innervating the islets of the pancreas will: ✓ Correct Answer: D. Increase secretion of glucagon from A cells