APPLIED RADIOLOGICAL ANATOMY

Detailed explanation-1: -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.

Detailed explanation-2: -Synthesis. Gastrin is a linear peptide hormone produced by G cells of the duodenum and in the pyloric antrum of the stomach. It is secreted into the bloodstream.

Detailed explanation-3: -These glands make digestive enzymes, hydrochloric acid, mucus and bicarbonate. Gastric juice is made up of digestive enzymes, hydrochloric acid and other substances that are important for absorbing nutrients – about 3 to 4 liters of gastric juice are produced per day.

Detailed explanation-4: -Gastrin is produced by cells, called G cells, in the stomach lining. When food enters the stomach, G cells trigger the release of gastrin in the blood. As blood levels of gastrin rise, the stomach releases acid (gastric acid) that helps break down and digest food.

Detailed explanation-5: -The antrum of the stomach contains pyloric glands, and their main feature is the presence of gastrin-secreting G cells. Somatostatin-secreting D cells are present in the pyloric and oxyntic glands and modulate gastrin release and gastric acid secretion [1].