AEMCA Practice Exam 2025 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 975

Which hormone is secreted by alpha cells in the pancreas?

Insulin

Glucagon

Alpha cells in the pancreas are responsible for the secretion of glucagon. This hormone plays a critical role in glucose metabolism by increasing blood glucose levels when they fall below normal. It stimulates the liver to convert stored glycogen into glucose and release it into the bloodstream, ensuring that the body has a sufficient supply of energy.

This action is essential, especially during fasting or when the body is in need of immediate energy. Glucagon acts in contrast to insulin, which is secreted by beta cells and lowers blood sugar levels. The roles of the other hormones listed are distinct: somatostatin, produced by delta cells, regulates other hormones and inhibits insulin and glucagon release, while thyroxine, produced by the thyroid gland, regulates metabolism but is unrelated to pancreatic function. Understanding the specific functions and secretions of different pancreatic cells is crucial for grasping how the body maintains glucose homeostasis.

Get further explanation with Examzify DeepDiveBeta

Somatostatin

Thyroxine

Next Question

Report this question

Download AEMCA Practice Exam PDF Study Guide
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy