<P> The small intestine is where most chemical digestion takes place . Many of the digestive enzymes that act in the small intestine are secreted by the pancreas and liver and enter the small intestine via the pancreatic duct . Pancreatic enzymes and bile from the gallbladder enter the small intestine in response to the hormone cholecystokinin , which is produced in the small intestine in response to the presence of nutrients . Secretin , another hormone produced in the small intestine , causes additional effects on the pancreas , where it promotes the release of bicarbonate into the duodenum in order to neutralize the potentially harmful acid coming from the stomach . </P>
<P> The small intestine is where most chemical digestion takes place . Many of the digestive enzymes that act in the small intestine are secreted by the pancreas and liver and enter the small intestine via the pancreatic duct . Pancreatic enzymes and bile from the gallbladder enter the small intestine in response to the hormone cholecystokinin , which is produced in the small intestine in response to the presence of nutrients . Secretin , another hormone produced in the small intestine , causes additional effects on the pancreas , where it promotes the release of bicarbonate into the duodenum in order to neutralize the potentially harmful acid coming from the stomach . </P>
in which layer of the intestine does most chemical digestion take place
in which layer of the intestine does most chemical digestion take place
small intestine
small intestine