Name the hormones released by duodenum.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Duodenum**: The duodenum is the first section of the small intestine, where a significant amount of digestion occurs. It receives chyme from the stomach and is involved in the regulation of digestive processes.

2. **Hormones Released by the Duodenum**: The duodenum releases several important hormones that play a crucial role in digestion. The main hormones released by the duodenum include:
- **Secretin**: This hormone is released in response to acidic chyme entering the duodenum. It stimulates the pancreas to release bicarbonate, which neutralizes stomach acid, and also promotes bile secretion from the liver.
- **Cholecystokinin (CCK)**: Released in response to fats and proteins in the chyme, CCK stimulates the gallbladder to release bile and the pancreas to secrete digestive enzymes.
- **Gastric Inhibitory Peptide (GIP)**: This hormone inhibits gastric motility and secretion, helping to slow down the digestive process when necessary.
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