Summary. This article outlines the steps you must take to find out what version of Java is running in your Windows 7 computer.ummary. This article outlines the steps you must take to find out what version of Java is running in your Windows 7 computer.
Achalasia is a disorder of the esophagus. There is a lower esophageal sphincter, which is a muscle, where the esophagus meets the stomach. In achalasia, that sphincter does not relax enough, there are fewer nerves than normal and there is no peristalsis in the lower two-thirds of the esophagus.
Esophageal cancer. Overview. Esophagus The esophagus is a muscular tube that connects your mouth and your stomach. Rings of muscle (sphincters) in the upper and lower portions contract and relax to allow food and liquid to pass. Esophageal cancer Esophageal cancer occurs in the cells that line the inside of the esophagus.