Thursday, April 25, 2013

The Digestive System

The Digestive System The digestive system is a conclave of organs that perform the process by which food, containing nutrients, is eaten and broken pig into different components. This breakdown makes it possible for the digested material to pass through with(predicate) the intestinal wall into the blood stream. The digestive process contains more an(prenominal) different steps that take place in many different organs. The first step of digestion begins at the mouth, where the food enters the mouth. saliva is secreted from the salivary glands. The saliva contains enzymes such as Ptyalin, which starts sugar digestion.
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The enzymes in like manner provide lubrication to help in the chewing and swallowing of the food. The food indeed goes down the esophagus and into the stomach, where the next step of digestion takes place. In the stomach, a mixture of hydrochloric acid and Pepsin, which is secreted by the stomach wall, liquefies the food. At the uniform time, a substance called intrinsic factor binds Vitamin B in food and var...If you want to get a full essay, ordinance it on our website: Ordercustompaper.com

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