Glucagon is produced by the ____.

A) adrenal cortex
B) adrenal medulla
C) pancreatic exocrine cells
D) kidneys
E) pancreatic islet cells

Glucagon

A hormone produced by the pancreas that increases blood glucose levels, acting as an antagonist to insulin.

Pancreatic Islet Cells

Cells located in the pancreas that produce hormones like insulin and glucagon, crucial for regulating blood sugar levels.

Adrenal Cortex

The outer layer of the adrenal glands that produces steroid hormones such as cortisol and aldosterone.