The Gastrointestinal Tract (GI)

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Introduction
The gastrointestinal tract (GI) comprises of the oral cavity, esophagus, stomach, small intestine, large intestine, rectum, and the anus. Also, digestion process start from the mouth; the ingestion of food stimulate the salivary secretion (mouth), the food is chewed before its passage through the esophagus down to the stomach where mechanical and chemical digestion takes place. Pepsinogen from the chief cells helps with the digestion of protein, amylase from the saliva and pancreatic fluid helps with the digestion of carbohydrate, and a pancreatic enzyme known as lipase helps with fat digestion, but the protein digestion takes a longer time. Limited absorption takes place in the stomach, but major absorptions takes place in the small and large intestine and the waste product excreted through the rectum via anus at a convenient place and time.
The purpose of the discussion is to describe the pathophysiology of gastric acid stimulation and production. Including an explanation of the gastric stimulation and production changes with gastroesophageal reflux disease (GERD), peptic ulcer disease (PUD), and gastritis. In addition, review behavior impact on the pathophysiology of GERD, PUD, and gastritis. However, the description of the diagnosis and treatment of the
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However, the above occurs due to reduced immune response, leading to limited serum immunoglobin G (IgG) antibody production and the inability to eradicate the infection. Also nicotine effect on the cell membrane include suppression of epithelial and vascular growth and this affect cell proliferation and blood vessel generation essential for healing process (Cope, 2013). However, elimination of alcohol consumption and cessation of smoking will help decrease the erosion and ulceration of the

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