TLS Online TPP Program

#Question id: 12058


A 45-year-old man presents with abdominal pain and hematemesis. An abdominal exam was relatively benign, and abdominal x-rays were suggestive of a perforated viscus. Endoscopy revealed a chronically perforated gastric ulcer, through which the liver was visible. Which of the following is a forerunner to gastric ulcer formation?

#Unit 7. System Physiology – Animal
  1. Back-leak of hydrogen ions
  2. Mucus secretion
  3. Proton pump inhibition
  4. Tight junctions between cells