<prompt> While putting nasogastric tube, the length is measured from upper incisors. What is the distance from upper incisors to cardia of the stomach?15 cm25 cm40 cm60 cm  <response>: The esophagus is about 25 cm 10 in. long. The distance from the upper incisor teeth to the beginning of the esophagus cricoid cailage is about 15 cm 6 in.; from the upper incisors to the level of the bronchi, 22 to 23 cm 9 in.; and to the cardia, 40 cm 16 in.. 