Protein Digesting Enzymes: Enzymes like pepsin in the stomach and trypsin, chymotrypsin, and carboxypeptidase in the small intestine break proteins into peptides and amino acids for absorption.
Exocrine and Endocrine Pancreas: The pancreas has both exocrine functions—secreting digestive enzymes into the duodenum—and endocrine functions, producing insulin and glucagon to regulate blood sugar levels.