Initiate digestion of starch through action of salivary amylase iv. Stimulation of beta-adrenergic or VIP receptors activates secretion of proteins, including amylase and mucous glycoproteins.
Primary secretion is modified by duct cells which add potassium bicarbonate and remove sodium.
Neutralize acidic contents of stomach as they enter the intestine. The endocrine part secretes insulin and glucagon from Islets of Langerhans. Therefore, secretion of pancreatic enzymes is regulated in the same way as secretion of bile, so they are secreted concurrently. Hormonal FX Gastrin inhibits water absorption indirectly. Hence supplementation of milk with vitamin D. Release of calcium from absorptive cell to blood depends on parathormone.