Constrictions of esophagus when measured from upper incisiors are present at
Correct Answer: 15 cm, 25 cm, 25 cm
Description: The second constriction is at 25 cm from the upper incisor teeth, where it is crossed by the aoic arch and left main bronchus. The third constriction is at 40 cm from the upper incisor teeth, where it pierces the diaphragm; the lower esophageal sphincter (LES) is situated at this level. ref - BDC vol2 , britannica.com
Category:
Anatomy
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now