The islets of langerhans in the pancreas
contain its endocrine cells that produce hormones that help control blood glucose
levels: Alpha cells - glucagon
, beta cells - Insulin
and amylin, delta cells - somatostatin
, pp cells - pancreatic polypeptide, epsilon cells -ghrelin.
The exocrine cells make digestive enzymes, like trypsinogen and chymotrypsinogen, to break down lipids and carbohydrates.