Final answer:
Enteroendocrine cells of the intestinal glands release hormones such as gastric inhibitory peptide, secretin, and gastrin, which play important roles in the digestive process.
Step-by-step explanation:
The enteroendocrine cells of the intestinal glands release hormones such as gastric inhibitory peptide, secretin, and gastrin. These hormones play important roles in the digestive process. For example, gastric inhibitory peptide inhibits gastric secretion and slows gastric emptying, while secretin stimulates the secretion of water and bicarbonate from the pancreas, and gastrin signals the secretion of gastric acid.