Body Basics: Eating Canal – Function of the Digestive System

Food is the body's fuel. But before any use is made, it must be properly processed. The food processing plant of the body is the eating channel, a ca. 10m long (33ft long) muscle that begins in the mouth and ends in the anus.

When food comes into his mouth and the temperature is by tongue. Solid teeth are injured by the forearm teeth (tooth decay), then the back teeth or moles are chewed. Before the food is tasted, and during chewing saliva in the mouth falls into the salivary glands near the lower jaw.

Saliva moistens foods and enzymes that contain initial digestion. When it is ready to swallow; the original wall was converted to a soft ball which was called bolus and heated or cooled to the appropriate temperature.

Although fast, this section is actually quite complex. First, the tongue pushes the bolus of the food into the cavity embedded in the muscles in the mouth of the mouth and in the back of the mouth: the throat. After the food is in the hopper, several activities take place in a few seconds to prevent ingestion from breathing disturbance.

From the hopper the bolus now enters the esophagus or the esophagus, joining the mouth to the stomach. The bolus falls not only because of gravity in the esophagus, but also by the waves of muscular action called peristalsis.

During eating, the esophagus is closed with the muscle ring closed, called the heart muscle, which prevents the high acidity of the stomach from regurgitation in the esophagus. As the vault reaches the esophagus, the sphincter relaxes to open the path to the stomach.

The stomach is a compressible, muscular bag designed to store food (so you do not usually need to eat smaller meals all day) to mix foods with different edible juices and slowly lower into the intestine.

Food is mixed as it becomes gastropod and relaxes, and the peristaltic waves move. By the time he had spent two to six hours in the stomach, the partially digested foods were converted into various chemicals into a liquid called chyme.

The gastric exit is known as muscle known as pyloric. As peristaltic waves press the stomach through the stomach, the sphincter passes small amounts of small blood into small vomit.

The small intestine is actually 20ft (6m) and not its length, but its width is about 4 cm. Most of the digestion process occurs in the small intestine under the influence of the digestive tract not only in the intestine, but also in the liver (epithelium) and the pancreas (pancreas).

peristaltic waves move in the small intestine, they get a different blend. If more food enters the stomach, a valve opens at the end of the small intestine and the chyme passes into the colon, a tube about 3ft (1.5m) long and an average diameter of 7.5cm.

In the large intestine, water is absorbed into the blood from digestive fluid residues. By the time these remains reach the anus, they are in the form of a solid feces. Instead of the continuous contraction of the peristalsis, the gradually more solid residues are moved by enormous propulsions, which occur only a few times a day. Finally, the faeces enter the anal canal, which is the last sphincter in the eating canal. From the beginning the sphincter opens automatically when the anal channel is full. But as the nervous system arrives, we learn to overwrite the automatic signals.

The nourishing channel works around 35 tons of food in an average of 70 years. No wonder, then, that it sometimes fails. Some eating disorders are so common that they have become domestic words – ulcers, infants, constipation, diarrhea, and heartburn – to name but a few. While some are inevitable, there are methods to preserve a healthy digestive tract.

  • Do not eat (or nourish the children) too much. This will burden digestion and cause weight problems. Vomiting and regurgitation may occur in babies
  • The food should be properly thawed. Digestion of carbohydrates in the mouth starts with phtaline, with the enzyme of saliva
  • Give enough juice to your diet – fruit on the skin, slightly cooked vegetables, bran with breakfast grain. Dietary fiber can not be digested with the canal, but it also stimulates the passage of food into the colon, helping to prevent constipation and possibly certain bowel diseases.
  • Avoid foods that you know or the family is not responding badly.
  • Minimizing stress. This increases the acid secretion of the stomach and the musculature of the whole system, which means that the food must be pressed too fast to not be digestible
  • Cessation and reduction of smoking, as it stimulates acid secretion similar to stress

Source by Andy G

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