Digestive Hormones and Enzymes

Gastrin

Hormone

Targets: Stomach

Source: Stomach

Stimulates gastric secretions and promotes gastric motility.

(Gastric) Somatostatin

Hormone

Targets: Stomach

Source: Stomach

Inhibits gastric secretion and gastric motility.

Cholecystokinin (CCK)

Hormone

Targets: Stomach, Pancreas, Gall Bladder

Source: Small intestine

Stimulates the release of bile and pancreatic enzymes.

Intestinal Gastrin

Hormone

Targets: Stomach

Source: Small intestine

Stimulates gastric secretions and motility.

Intestinal Somatostatin

Hormone

Targets: Stomach

Source: Small intestine

Inhibits gastric secretion and gastrointestinal motility.

Secretin

Hormone

Targets: Pancreas

Source: Small Intestine

Stimulates bicarbonate secretion and regulates pH.

Salivary Amylase

Enzyme

Targets: Starch, Glycogen
Source: Saliva
Products: Disaccharides

Pepsin

Enzyme

Targets: Proteins

Source: Stomach

Products: Polypeptides

Gastric Lipase

Enzyme

Targets: Lipids

Source: Stomach

Products: Fatty acids

Pancreatic Amylase

Enzyme

Targets: Starch, Glycogen (Polysaccharides)

Source: Pancreas
Products: Disaccharides

Pancreatic Lipase

Enzyme

Targets: Lipids

Source: Pancreas

Products: Fatty Acids, Glycerol

Trypsin

Enzyme

Target: Polypeptides

Source: Pancreas

Products: Peptides

Chymotrypsin

Enzyme

Target: Polypeptides

Source: Pancreas

Products: Peptides

Carboxypeptidase

Enzyme

Target: Polypeptides

Source: Pancreas
Products: Amino Acids, peptides

Nucleases

Enzyme

Target: Nucleic Acids

Source: Pancreas

Products: Nucleotides

Enterokinase

Enzyme

Target: Trypsinogen

Source: Cells of Intestinal Mucosa

Product: Converts trypsinogen to trypsin

Peptidase

Enzyme

Target: Peptides

Source: Cells of Intestinal Mucosa

Products: Amino acids, Dipeptides, Tripeptides

Dipeptidase

Enzyme

Target: Dipeptides

Source: Cells of Intestinal Mucosa

Products: Individual Amino Acids

Tripeptidase

Enzyme

Target: Tripeptides

Source: Cells of Intestinal Mucosa

Products: Individual Amino acids

Sucrase

Enzyme

Target: Sucrose

Source: Cells of Intestinal Mucosa

Products: Glucose, Fructose

Lactase

Enzyme

Target: Lactose

Source: Cells of Intestinal Mucosa

Products: Glucose, Galactose

Maltase

Enzyme

Target: Maltose Source: Cells of Intestinal Mucosa
Products: 2 Molecules of Glucose

Intestinal Lipase

Enzyme

Target: Triglycerides
Source: Cells of Intestinal Mucosa
Products: Fatty Acids, Glycerol