The word "cardia" is commonly misspelled as "cardio" due to its close association with the heart and cardiovascular system. However, the correct spelling is "cardia." The IPA phonetic transcription for "cardia" is /ˈkɑrdiə/, with the stress on the first syllable. The word refers to the opening at the lower end of the esophagus where it meets the stomach. It is important to use the correct spelling to avoid confusion and maintain accuracy in medical terminology.
The term "cardia" refers to the anatomical structure located at the uppermost part of the stomach, adjacent to the lower end of the esophagus. It acts as a gateway, controlling the passage of food and beverages from the esophagus into the stomach. Cardia is considered a crucial component of the upper gastrointestinal tract.
In terms of its physical characteristics, the cardia is typically identified as a muscular ring or sphincter that helps prevent the contents of the stomach, including stomach acid and partially digested food, from flowing back into the esophagus. This muscular valve, known as the lower esophageal sphincter (LES), contributes to maintaining the integrity of the esophagus and preventing possible acid reflux, a condition where the stomach acid flows back up the esophagus.
The cardia acts as both a regulatory and protective mechanism, protecting the sensitive lining of the esophagus from the corrosive effects of stomach acid. It aids in controlling the entry and exit of substances, ensuring they reach the correct digestive compartments while preventing the reflux of acidic gastric juices back into the esophagus.
Disorders or abnormalities associated with the cardia may include conditions such as gastroesophageal reflux disease (GERD), esophagitis, hiatal hernia, or other structural or functional issues that impair its proper functioning. Medical evaluation and treatment may be necessary to manage these conditions to minimize discomfort and potential complications.
The esophageal orifice of the stomach; the fundus ventriculi or left extremity of the stomach.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
The word "cardia" comes from the Greek term "kardía" (καρδία), which means "heart". It is derived from the Indo-European root word "ḱḗr" meaning "heart" or "diaphragm". The term "cardia" is used in several fields, including anatomy and medicine, to refer to the upper opening of the stomach, where it meets the esophagus.