HOW YOUR DIGESTIVE SYSTEM WORKS.

How Does Your Digestive System Works:

The digestive system is made up of digestive tract including the mouth,esophagus,stomach,small intestine,large intestine,rectum,anus and digestive organs including the liver and pancreas.The main function of the gastrointestinal tract is to break down carbohydrate,fats, and proteins into small molecules.At the first step,food enters the mouth chewed by teeth and mixed with saliva which can digest the starch from food into smaller molecules.Then the swallowed food through the muscle action is called peristalsis is pushed into the osphagus and stomach.Then the food enters the intestine and further digested by other digestive juices from the pancreas,liver,intestine.Finally,the waste product of this process are pushed into the colon,where the remain until the feaces are discharged by bowel movement.

Gastroesophageal Reflux Disease:Definition,Cause,Symptoms.

Gastroesophageal reflux disease(GERD) or Acid reflux characterized by the symptom of heart burn,regurgitation,and nusea is the chronic mucosal damage caused by abnormal regurgitation of stomach acid to the esophagus.The reason underneath GERD is commomly contributed to the abnormal function of the lower esophagesl sphincter(LES) which is supoosed to tighten up and stop food and acid refluxing into the esophagus.However,the abnormal relaxation of the LES and the laxity of the LES will lead to frequent acid reflux to esophagus.This reflux of the stomach acid can inflame and stimulate the nerve fibres in the esophagus,which results in a burning in the middle of the chest or even extends up into the neck

Peptic Ulcer:
Peptic ulcer including the gastric ulcer,duodenal ulcer are defined as mucosal erosions equal to or greater than 0.5 cm of the gastrointestinal tract area.
Duodenal ulcer and gastric ulcers are more in common among those ulcers and they get similar symptoms like abnominal pain relating to (deudonal ulcers are classically relieved by food ,while gastric ulcers are exacerbated by it),bloating and abnormal fullness,nausea,vomiting,loss of appetite and weight loss.

How To Deal With Gastrointestinal Diseases: