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P4 - Applied Science Essay

  • Submitted by: crissimilstead
  • on January 27, 2013
  • Category: Psychology
  • Length: 1,701 words

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Below is an essay on "P4 - Applied Science" from Anti Essays, your source for research papers, essays, and term paper examples.

Assignment Number: 11.4

Assignment Title: Physiology of the digestive system

Christina Milstead

P6

Structure of digestive system

Your digestive system is constructed in its own way, to help turn the food that we can consume, into energy that we need enable to survive, and to package any waste products ready for disposal. There are many parts involved in the digestive system, that all work together, to perform the specialized function. The digestive systems consists of the mouth, esophagus, stomach, small intestine, pancreas, liver, gallbladder, Large intestine, Rectum, Anus. The mouth is where the digestive process starts, because the first bite of the food is taken here. Chewing the food, will break it into smaller pieces, allowing the body to digest it easier. Saliva is then mixed with the food, to help break the food down into a substance that the body can absorb and use. The esophagus is located in the trachea, which will receive any food that you consume, when you swallow it. The esophagus helps to deliver the food to your stomach. When the food has reached the stomach, it will be held here, whilst it is being mixed with different enzymes, that help break down the food even more, to allow the body to use it for the correct things, such as energy. The cells within the lining of the stomach, release a strong acid and enzymes, to help with the process of breaking the food down. Once the food as has been processed within the stomach, it will be released into the small intestine. The small intestine is a muscular tube that helps the process of breaking down the food, by using the enzymes that the pancreas releases. The peristalsis also helps the movement of food and mixing it with the digestive secretions. The duodenums main role is to help the breaking down process, and absorbs the nutrients into the bloodstream. Once the contents have passed through the small intestine, they will no longer be solid, they will be a liquid, due to the mix of water,...

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