http://www.houstonent.com/laryngeal-reflux/
Laryngeal Reflux
In order to view the content, you must install the Adobe Flash Player. Please click here to get Flash Player.
There are two sphincter muscles located in the esophagus, the tube which food passes through as it travels from your mouth to your stomach. If the upper and lower esophageal sphincters do not function properly, acid that has flowed into the esophagus is allowed into the throat and voice box. When this occurs, it's called Laryngeal Reflux, or LPR.