Review pathophysiology of the gastrointestinal tract by matching each term shown

Question

Review pathophysiology of the gastrointestinal tract by matching each term shown at left with the appropriate definition at right. Endoscope Ulcers Vomiting Cimetidine Retching Omeprazole Biopsy Helicobacter pylori Medulla oblongata Area postrema Erosions of the gastric, lower esophageal, or duodenal surfaces A device using fiber-optic or video technology to visualize and diagnose gastric and duodenal ulcers Attainment of a tissue sample Chemicals that can stimulate vomiting via receptors in the stomach, duodenum, or brain Example of an H2 receptor blocker :Example of a proton-pump inhibitor :A bacterium present in the stomach of the majority of patients with ulcers or gastritis Location of the region that coordinates vomiting A brain region outside the blood-brain barrier that is sensitive to toxins in the blood and can initiate vomiting Oocurs when the lower esophageal sphincter relaxes, and the high abdominal pressure forces the contents of the stomach into the esophagus, but without expulsion via the mouth Emetics Occurs when abdominal contractions become so strong that the increased thoracic pressure forces the

Explanation / Answer

Endoscope:- A device using fiber optic technology to usualize and diagnose gastric and duodenal ulcer.

Ulcers:- Erosion of gastric, lower esophageal or duodenal surface.

Vomiting:- Occurs when abdominal contractions become so strong that the increase thoracic pressure forces the contents of the esophagus through the upper esophageal sphincter and out the mouth.

Cimetidine:- example of an H2 receptor blocker (this drug blocks the production of acid by acid-producing cells)

Retching:- occurs when the lower esophageal sphincter relaxes and the high abdominal pressure forces the contents of the stomach into the esophagus but with out expulsion via the mouth.

Omeprazole:- example of proton pump inhibitor(this drug decreases the amount of acid produced in the stomach)

Biopsy:- attainment of a tissue sample

Helicobactor pylori:- a bacterium present in the stomach of majority of patients with ulcer or gastritis.

Medulla oblongata:- location of region that coordinates vomiting

Area postrema:-A brain region outside the blood brain barrier that is sensitive to toxins in blood and can initiate vomiting

Emetics:- chemical that can stimulate vomiting via receptors in stomach, duodenum or brain.

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