MDCAT Biology MCQ #2944

A 45-year-old man is diagnosed with a condition where the lower esophageal sphincter (LES) is not functioning properly. What is the likely consequence?

MDCAT Biology MCQ #2944

  1. Question 1

    Q1. A 45-year-old man is diagnosed with a condition where the lower esophageal sphincter (LES) is not functioning properly. What is the likely consequence?

    • A) Food accumulation in the esophagus
    • B) Gastric contents refluxing into the esophagus
    • C) Intestinal obstruction
    • D) Reduced gastric secretion

    Answer: Gastric contents refluxing into the esophagus

    Explanation: LES prevents gastric reflux; its failure allows stomach contents to reflux into the esophagus.