Peptic ulcers are sores in the lining of the stomach that are caused by a bacterial infection. these bacteria increase the acid in the stomach and eat away at the stomach lining, which causes sores. when this occurs, which type of tissue does the acid remove?

Which causes sores?

A peptic ulcer (or gastroduodenal ulcer) is an erosion or lesion in the lining of the stomach or intestine that occurs when the protective layer of the mucous membranes deteriorates in certain places, thus allowing the stomach's natural stomach acids to penetrate, causing the pain.

When this occurs?

The pain occurs once the protective membrane is damaged, due to the action of stomach acids.

Although stress and spicy food can aggravate the symptoms of peptic ulcer disease, they are not the cause, contrary to what we have already believed.

Most of these ulcers are caused by bacteria called Helicobacter pylori (H. pylori). It invades the mucous wall that normally protects the stomach and small intestine against stomach acids. The mucosa is thus damaged.

The second leading cause of peptic ulcers is the use of acetylsalicylic acid and other nonsteroidal anti-inflammatory drugs.

Which type of tissue does the acid remove

The gastric acids attack the cell layers below the protective membrane due to the presence of holes (caused by H. pylori), which are muscle layers and secretory glands, reaching the capillaries and vessels, causing bleeding, so, if they are important, blood can be found in the stool and vomiting.

The mucosal lining is damaged in the ulcer caused by the bacteria.

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c.) polymerase chain reaction

- "unlike the original dna fingerprinting method, dna profiling does not use restriction enzymes to cut the dna. instead it uses the polymerase chain reaction (pcr)? to produce many copies of specific str sequences. pcr is an automated procedure that generates lots of copies of a specific sequence of dna."