There are five digestive juices, viz., saliva, gastric juice, pancreatic juice, succus entericus (intestinal juice) and bile, secreted from salivary, gastric, pancreatic, intestinal and hepatic gland respectively, which are poured in the alimentary canal at its different levels successively from oral to aboral side. The term, mechanism of secretion is meant by- (a) How the glands respond to secrete by [...]
In this article we will discuss about:- 1. Nerve Supply of Salivary Glands 2. Mechanical Effects of Salivary Secretion 3. Observations 4. Rate of Flow and Composition 5. Adaptability 6. Disturbances. Nerve Supply of Salivary Glands: The salivary centre consists of superior and inferior salivary nuclei in the reticular formation of the medulla. The salivary glands receive double nerve supply—both [...]
There are five digestive juices; saliva, gastric juice, pancreatic juice, succus entericus (intestinal juice) and bile. The necessity for so many digestive juices is that -(a) One juice does not contain all the enzymes necessary for digesting all the different types of foodstuffs. For instance, saliva contains only carbohydrate-splitting enzymes; whereas gastric juice contains both fat- and protein -splitting enzymes [...]