Stomach

MedlinePlus describes the stomach as an organ between the esophagus and the small intestine. NIDDK explains that the GI tract is a series of hollow organs joined in a long, twisting tube from the mouth to the anus, and that the hollow organs that make it up are the mouth, esophagus, The hollow organs that make up the GI tract are the mouth, esophagus, stomach, small intestine, large intestine, and anus.

According to NIDDK, when food reaches the end of the esophagus, a ringlike muscle called the lower esophageal sphincter relaxes and lets food pass into the stomach; this sphincter usually stays closed to keep what is in the stomach from flowing back into the esophagus. Glands in the stomach lining make stomach acid and enzymes that break down food, and the stomach muscles mix the food with these digestive juices. The stomach then slowly empties its contents, called chyme, into the small intestine.

MedlinePlus titles its topic Stomach Disorders and gives gastric disorders as another name for it. The same page names indigestion and heartburn as common stomach problems, and says peptic ulcers and GERD are problems that require medical attention.

Estómago is the word used by both MedlinePlus en español and NIDDK en español, and the Spanish dictionary marks it as masculine: el estómago. MedlinePlus en español describes the organ as lying entre el esófago y el intestino delgado, between the esophagus and the small intestine. The dictionary's first sense is the organ, a widened part of the digestive system. It also records a colloquial sense, the capacity to tolerate or do unpleasant things.

Two adjectives appear in the sources. MedlinePlus en español titles its topic Enfermedades del estómago, gives Enfermedades estomacales as another name, and on the same page writes ácidos gástricos and problemas gástricos. NIDDK en español writes ácido estomacal for stomach acid, jugos digestivos for digestive juices and quimo for chyme. On the MedlinePlus en español page, indigestion and heartburn are la indigestión y la acidez, and severe abdominal pain is dolor abdominal severo.