Answer :
Final answer:
Secretin and cholecystokinin (CCK) are the hormones responsible for stimulating the secretion of bile and pancreatic juice into the duodenum, important for food digestion and neutralizing acidity.
Explanation:
Digestive hormones play vital roles in regulating various aspects of digestion and nutrient absorption in the gastrointestinal tract. Some key hormones include gastrin, which stimulates gastric acid secretion; secretin, which stimulates the pancreas to release bicarbonate to neutralize stomach acid; cholecystokinin (CCK), which stimulates the gallbladder to release bile and the pancreas to release digestive enzymes; and ghrelin, which stimulates appetite. Additionally, hormones such as gastric inhibitory peptide (GIP) and motilin regulate gastric emptying and intestinal motility. These hormones work together to coordinate the digestive process and maintain metabolic homeostasis within the body.
Secretin and cholecystokinin (CCK) are the hormones that stimulate the secretion of bile and pancreatic juice into the duodenum while inhibiting gastric activities. These hormones play a crucial role in the digestion of chyme during the intestinal phase.
When acidic chyme enters the duodenum, secretin is released, prompting the pancreas to produce an alkaline bicarbonate solution that helps neutralize the acidity. At the same time, the presence of proteins and fats in the duodenum triggers the release of CCK, which encourages the pancreas to secrete enzyme-rich pancreatic juices and signals the gallbladder to release bile, aiding in the digestion of fats.