Adrenaline or epinephrine is an emergency hormone, which is responsible for this action as it is known as the 3 F hormone-fright, flight and fight hormone. Glucagon increase blood sugar level, and is stimulated by adrenal glands during emergency condition. Similarly, Thyroxine increase regulates metabolic rate and is stimulated during the condition. Gastrin is a peptide hormone primarily responsible for enhancing gastric mucosal growth, gastric motility, and secretion of hydrochloric acid (HCl) into the stomach. It is present in G cells of the gastric antrum and duodenum.