Solved UPSC CDS/OTA Question
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Q · Digestive Systemmedium · 45s
GERD (gastroesophageal reflux disease) results from failure of:
TopicDigestive System
Question Typemultiple choice
Difficultymedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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In GERD, the lower oesophageal sphincter (LES) does not close properly, allowing gastric acid to reflux into the oesophagus, causing heartburn and potential oesophageal injury.
Final Answer: Option B - Lower oesophageal sphincter