PATHOLOGY

Detailed explanation-1: -The digestive system functions to provide mechanical processing, digestion, absorption of food, secretion of water, acids, enzymes, buffer, salt, and excretion of waste products.

Detailed explanation-2: -The brain and the endocrine system control digestive processes. The brain controls the responses of hunger and satiety. The endocrine system controls the release of hormones and enzymes required for digestion of food in the digestive tract.

Detailed explanation-3: -Gastroenteropancreatic hormones regulate carbohydrate metabolism, gastric acid secretion, pancreatic exocrine and gallbladder function, gastrointestinal motility and blood flow. These important regulatory hormones may in turn be controlled by a series of gastroduodenal releasing hormones.

Detailed explanation-4: -Gastrin: Gastrin is a peptide hormone that stimulates gastric mucosal development, motility, and the release of hydrochloric acid (HCl) into the stomach.