Tuesday, January 21, 2014

Investigate The Functions And Dysfunctions Of The

Investigate the functions and dysfunctions of the digestive system Functions of the Digestive System The digestive system is a group of organs that work unneurotic to gain nutrients from victuals and drink. When provenders and drinks first enter the body, they atomic number 18 in a pee that the body is unable to choice nutrients from. The digestion emergence breaks the nutrient toss off into microer molecules so that it is easier for the body to lactate all nutrients. nourishment is mixed with digestive juices which enable it to carry smoothly done the digestive tract. Large molecules of pabulum are broken batch into smaller molecules. Digestion begins in the mouth, when you chew and swallow, and is ideal in the small intestine, this process is called peristalsis. Not save does the digestive system extract essential nutrients from nourishment for thought matter, it also disposes of the outcast material via excretion. Digestion begins in the oral cavity. How ever, it begins before food eve enters the mouth; the sight, whole step or even estimation triggers the salivary glands. Chewing the food prompts the glands to secrete the enzymes required to only break down the food which include; amylase, maltase, sucrase, lipase and pepsin. These enzymes are ask to break down accepted sugars and starches that chewing cant do itself.
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The saliva in the mouth also softens the food so that it is easier to navigate by dint of the digestive system. erstwhile the food has been swallowed, it makes its way down the defile which is made of muscle. To guide the food down towards th e stomach, it contracts and relaxes, pushing! it advance down each time. Once the food reaches the stomach, it begins the second soma of digestion. The stomach is made up of three layers of muscle which work out and shrink with the nominal head of food. This is where food is broken down further with the help of protein breakout down enzymes and the hydrochloric acid. The hydrochloric acid creates the perfect purlieu for the enzymes; it destroys any bacteria that...If you privation to get a upright essay, order it on our website: BestEssayCheap.com

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