An esophageal spasm is the sudden, abnormal squeezing of the food pipe (esophagus) -- the tube that carries food from your mouth to your stomach. Doctors are not sure what causes esophageal spasms, ...

The esophageal sphincters are bands of muscles at the top and bottom of the esophagus — the muscular tube that passes food and drink from the mouth to the stomach. Esophageal sphincters open and close ...