Define and Classify Gastrointestinal Reflexes

  Q. Define and Classify Gastrointestinal Reflexes Gastrointestinal Reflexes Generally, the term ‘reflex’ refers to any pathway that uses the nervous system, endocrine system, or both to receive input about a change, integrate the information, ad react appropriately.  Gastrointestinal reflex refers to the use of this mechanism in the control of GI functions (motility, secretion, […]

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Carbohydrate Digestion and Absorption

  Write a Short Essay on Carbohydrates Digestion and Absorption   In the Mouth: Carbohydrate digestion begins in the mouth by saliva. Saliva begins digestion of carbohydrate in the mouth through action of salivary amylase, an enzyme that breaks polysaccharides down into maltose, a disaccharide consisting of two glucose molecules. Digestion in the mouth involves […]

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Factors That Regulate Gastric Emptying

  Q. What Factors Regulate Gastric Emptying? This post considers the factors that regulate gastric emptying. In addition to being responsible for gastric emptying, the antral peristaltic contractions provide the driving force for gastric emptying. The amount of chyme that escapes into the duodenum with each peristaltic wave before the pyloric sphincter closes tightly depends […]

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Nervous Control of Gastrointestinal Activity

Q. Write Short Notes on the Nervous Control of Gastrointestinal Activity   The digestive system has remarkably complex regulation of motility and secretion. Various control mechanisms, which include neural, endocrine, and local components, interact to regulate GI activities. This post discusses the neural control of gastrointestinal (GI) activity. Long Reflexes are Integrated in the CNS […]

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