Solved UPSC CDS/OTA Question
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Q · Digestive Systemmedium · 45s
Which sphincter controls the passage of chyme from the stomach to the duodenum?
TopicDigestive System
Question Typemultiple choice
Difficultymedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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The pyloric sphincter, a ring of smooth muscle between the stomach’s antrum and duodenum, regulates chyme flow, preventing duodenal reflux and ensuring gradual gastric emptying for optimal digestion and neutralization by pancreatic secretions.
Final Answer: Option B - Pyloric sphincter