Which hormone signals the pancreas to secrete bicarbonate into the small intestine?

Which hormone tells the pancreas to secrete pancreatic lipases, proteases, and amylases into the small intestine?

Since this is not my area of expertise, I searched Google under the key words "hormones pancreas secretion" to get this:

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In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.

The hormone that signals the pancreas to secrete bicarbonate into the small intestine is called secretin.

To find the answer to this question, you can start by understanding the function of the pancreas in the digestive system. The pancreas is an organ located behind the stomach and is responsible for producing digestive enzymes and hormones.

In the case of bicarbonate secretion, when acidic chyme (partially digested food) enters the small intestine from the stomach, it needs to be neutralized to create an optimal environment for further digestion and absorption. Secretin is a hormone released by the duodenum (first part of the small intestine) in response to the acidic chyme. This hormone then travels to the pancreas and stimulates the secretion of bicarbonate-rich pancreatic juice into the small intestine. Bicarbonate helps to neutralize the acidic chyme, creating a more favorable pH for the digestive enzymes.

The hormone that tells the pancreas to secrete pancreatic lipases, proteases, and amylases into the small intestine is called cholecystokinin (CCK).

To find the answer to this question, you can once again consider the function of the pancreas in digestion. Pancreatic lipases are enzymes that break down fats, proteases break down proteins, and amylases break down carbohydrates. These enzymes are essential for the digestion and absorption of these macronutrients in the small intestine.

CCK is a hormone released by cells in the duodenum and the small intestine in response to the presence of fat and protein in the chyme. It acts on the pancreas, stimulating the secretion of pancreatic lipases, proteases, and amylases into the small intestine. This hormone also has other functions, such as stimulating the gallbladder to release bile, which aids in the digestion of fats.

In summary, secretin signals the pancreas to secrete bicarbonate into the small intestine to neutralize acidic chyme, while cholecystokinin tells the pancreas to secrete pancreatic enzymes for the digestion of fats, proteins, and carbohydrates.