The stomach is a muscular organ of the digestive system and located on the left side
of the upper abdomen. Stomach is an expanded part of the digestive tube between the
esophagus and small intestine. The esophagus is the tube that carries food from the
mouth to the stomach. Food enters the stomach through esophagus after passing through
a muscular valve called the lower esophageal sphincter. In other words the LES is
a ring of muscle at the bottom of the esophagus that acts like a valve between the
esophagus and stomach. The sphincter relaxes during swallowing to allow food to pass.
It then tightens to prevent flow in the opposite direction. The stomach secretes
hydrochloric acid and enzymes to aid in the digestion of food. The inner lining
of the stomach resists corrosion by this acid. The cells that line the stomach produces
large amounts of protective mucus.
The stomach muscles contract periodically, mixing food with grinding motion to enhance
digestion. The pyloric sphincter is also a muscular valve which opens to allow food
to pass from the stomach into the small intestine. … Full Story
Stomach Reflux is a condition in which the lower esophageal sphincter ( LES ) (the
muscular ring at the lower end of the esophagus) is abnormally relaxed and allowing
the stomach corrosive contents to back up or 'reflux' into the gullet (esophagus).
This condition is also called Gastroesophageal Reflux Disease ( GERD ). The regurgitated
liquid can inflame and damage the lining of the esophagus as the lining of the esophagus
does not share the same resistant features of stomach and acid can damage it. ....
Heartburn is the most common symptom of GERD or reflux. Heartburn usually is a burning
sensation in the center of the chest, behind the breastbone. It may start in the
abdomen or may extend up into the neck and also spread to the back. This burning
sensation occurs when the gastric acid comes in contact with the unprotected wall
lining of the esophagus, the tube that directly connects both the mouth and stomach.
Sometimes the pain can be sharp ,crushing or pressure-like, rather than burning feeling.
This pain is very much similar to heart attack pain (angina) so it is vital to seek
specialist advice to ensure accurate diagnosis.
If stomach reflux acid disorder persist then the following symptoms may occur: