ANATOMY

Detailed explanation-1: -Gastric HCl is secreted from the highly specialized parietal cells located in the corpus of the stomach, generating a H+ concentration in the gastric juice that is 3 million times greater than that in blood and tissue.

Detailed explanation-2: -Stomach (gastric) juice is the term used to describe the chemicals that break down food in the stomach. These include hydrochloric acid and an enzyme called pepsin. Gastric juice is sometimes referred to as stomach acid, although not all of the substances it contains are acidic.

Detailed explanation-3: -The gastric mucosa secretes 1.2 to 1.5 litres of gastric juice per day. Gastric juice renders food particles soluble, initiates digestion (particularly of proteins), and converts the gastric contents to a semiliquid mass called chyme, thus preparing it for further digestion in the small intestine.

Detailed explanation-4: -Gastric juice is secreted by gastric mucosal glands, and contains hydrochloric acid, mucus, and proteolytic enzymes pepsin (which breaks down proteins), and lipase (which breaks down fats).