The narrowest part of GIT is______________?
Correct answer: D. Pharyngo esophageal junction
- A. 60 cm proximal to ileocecal junction
- B. 1stpart of duodenum
- C. Esophago gastric junction
- D. Pharyngo esophageal junction
Explanation
The pharyngoesophageal junction is the narrowest point of the gastrointestinal tract, owing mainly to the cricopharyngeus muscle. The other listed sites are not the classic narrowest constriction.
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Practise Thorax
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