You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Which of the following mechanism CANNOT prevent gastroesophageal reflux? and explain in detail?
All the factors except circular fibres of GE sphincters have been mentioned in the mechanisms which help in the prevention of gastroesophageal disease. So Circular muscle fibres of GE sphincter is answer of choice here. Ref: Sabiston 18/e, Page 1108; Essential of Surgery By Sunil Chumber 1/e, Page 750; Textbook of Surgery By S. Das 3/e, Page 790; Bailey & Love 22/e, Page 650.