Anatomy Constrictions of esophagus when measured from upper incisiors are present at A 15 cm, 20 cm , 40 cm B 15 cm, 25 cm, 25 cm C 20 cm, 30 cm, 40 cm D 30 cm, 40 cm, 60cm 💡 Explanation Constrictions of esophagus when measured from upper incisiors are present at ✓ Correct Answer: B. 15 cm, 25 cm, 25 cm