Constrictions of the esophagus, when measured from upper incisors, are present at?
Correct Answer: 15 cm, 25 cm, 40 cm
Description: It is a fibromuscular tube, about 25 cm long in an adult.
It extends from the lower end of the pharynx (C6) to the cardiac end of the stomach (Til).
It runs Vertically but inclines to the left from its origin to thoracic inlet and again from T7 to oesophageal opening in the diaphragm.
It shows three normal constrictions and it is important to know their location at oesophagoscopy.
They are: At the pharyngo-oesophageal junction (C6) - 15 cm from the upper incisors. At the crossing of the arch of the aorta and left main bronchus (T 4) - 25 cm from upper incisors.
Where it pierces the diaphragm (T 10) - 40 cm from upper incisors. (Foreign bodies in the oesophagus can be held up at these constrictions)
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