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1 sty 2021 · Digestion of food in the human digestive system is a complex combination of versatile and multiple-scale physicochemical processes that steer the food intake, disintegration to suitable forms, absorption of the basic units, transportation to related organs, and purging the remaining waste.
1 sty 2019 · The main functions of the duodenum are to (1) alkalinize acidic chyme, thereby protecting its mucosa and facilitating digestion; (2) absorb calcium and iron; (3) further the breakdown of food products; and (4) exert neuroendocrine control of upper GI motility and secretion.
17 lip 2023 · The digestion inside of the duodenum is facilitated by the digestive enzymes and intestinal juices secreted by the intestinal wall as well as fluids received from the gallbladder, liver, and pancreas.
1 maj 2023 · G cells secrete gastrin in the antrum of the stomach and the duodenum in response to the presence of breakdown products of protein digestion (such as amino acids and small peptides), distention by food, and vagal nerve stimulation via GRP.
4 sty 2022 · In this Review, we discuss our current understanding of the generation of mechanosensory signals from the digestive periphery, the neural afferent pathways that relay these signals to the brain...
The gastrointestinal tract is a complex system with diverse functions related to the interactions between food and the body. Although its prime functions are digestion and absorption, it is also a sophisticated immunological defence organ and the body’s largest endocrine organ.
The human digestive system is reviewed in the context of a process with four major unit operations: oral processing to reduce particle size and produce a bolus; gastric processing to initiate chemical and enzymatic breakdown; small intestinal processing to break down macromolecules and absorb nutrie …
