GI tract disorders · Physiology

Achalasia is characterized by failure of:

  1. Gastric peristalsis
  2. Lower esophageal sphincter relaxation
  3. Upper esophageal sphincter contraction
  4. Intestinal segmentation
Show answer and explanation

Correct answer: Lower esophageal sphincter relaxation

Achalasia involves impaired relaxation of the lower esophageal sphincter. This leads to difficulty in swallowing.

Difficulty: Medium Question 11 of 20

Practice all 20 GI tract disorders questions

Keep practicing

More GI tract disorders questions