Surgery Which of the following is false about lower esophageal sphincter A Relaxation is mediated by VIP and nitrous oxide B Resting pressure is 10 to 25 mmHg C Pinch cock action of diaphragm protects against reflex D Abnormal relaxation will cause achalasia 💡 Explanation Which of the following is false about lower esophageal sphincter ✓ Correct Answer: D. Abnormal relaxation will cause achalasia