Essay On The Digestive System

The digestive system is a group of organs that works together to convert food into energy and basic nutrients that will feed the entire body. The digestive system breaks down food so nutrients can be absorbed by the body. The digestive system has three main functions. First, it ingests food then breaks it down so nutrients can be absorbed and it also eliminates what cannot be digested.

During an average lifespan, as much as 45 tons of food can pass through one’s digestive system. Food travels almost 9m through a long tube inside the body known as the alimentary canal or the gastrointestinal tract .

1) Mouth: The process of digestion starts in the mouth. Where the food is broken down into small pieces and these pieces can be easily absorbed.

2) Pharynx: The main function of the pharynx is: it allows both air and food to pass through. The pharynx also receives the food in the digestive system after being swallowed and pushes it to the esophagus.

3) Esophagus: Esophagus is a long straight tube which connects the pharynx to the stomach. Once the food has been reduced to a soft mush, the tongue pushes it to the throat which leads to a long straight tube called esophagus. The esophagus squeezes the mass of food with rhythmic muscle contraction called peristalsis which then forces the food to the stomach.

4)Stomach: The stomach squeezes and mixes food with enzymes for hours before it releases the mixture into the small intestine.

5) Pancreas: The pancreas is an oval organ located between the stomach and the small intestine. It makes fluids to protect the small intestine from the acid. It produces important enzymes and hormones that will ...

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... ulcers

c) Smoking has become increasingly and the chances of ulcers because the procedure of healing is slow, which leads to the recurrence of the ulcer.

To develop normally in the colon at the places vulnerable naturally occur under the influence of pressure, where there is a single theory explain why the incidence of this disease is increased pressure in the colon that cause the weakened wall diverticula leading to infection, or blockage in the narrow opening of the diverticulum may reduce blood flow to the area, leading to inflammation.

Is a disorder of the digestive system and autoimmunity that leads to the destruction of the lining of the small intestine when eating food that contains gluten, gluten is a form of protein found in grains, and this may cause damage to the intestines to be difficult for the body's absorption of nutrients, especially fat and iron.