Definitions for gastric acid
gas·tric acid

Princeton's WordNetRate this definition:0.0 / 0 votes

1. gastric juice, gastric acidnoun

   digestive secretions of the stomach glands consisting chiefly of hydrochloric acid and mucin and the enzymes pepsin and rennin and lipase

WiktionaryRate this definition:0.0 / 0 votes

1. gastric acidnoun

   The acidic secretion of the stomach; mostly hydrochloric acid

WikipediaRate this definition:0.0 / 0 votes

1. Gastric acid

   Gastric acid, gastric juice, or stomach acid is a digestive fluid formed within the stomach lining. With a pH between 1 and 3, gastric acid plays a key role in digestion of proteins by activating digestive enzymes, which together break down the long chains of amino acids of proteins. Gastric acid is regulated in feedback systems to increase production when needed, such as after a meal. Other cells in the stomach produce bicarbonate, a base, to buffer the fluid, ensuring a regulated pH. These cells also produce mucus – a viscous barrier to prevent gastric acid from damaging the stomach. The pancreas further produces large amounts of bicarbonate and secretes bicarbonate through the pancreatic duct to the duodenum to neutralize gastric acid passing into the digestive tract. The active components of gastric acid are protons and chloride. Often simplistically described as hydrochloric acid, these species are produced by parietal cells in the gastric glands in the stomach. The secretion is a complex and relatively energetically expensive process. Parietal cells contain an extensive secretory network (called canaliculi) from which the "hydrochloric acid" is secreted into the lumen of the stomach. The pH of gastric acid is 1.5 to 3.5 in the human stomach lumen, a level maintained by the proton pump H+/K+ ATPase. The parietal cell releases bicarbonate into the bloodstream in the process, which causes a temporary rise of pH in the blood, known as an alkaline tide. The highly acidic environment in the stomach lumen degrades proteins (e.g., food). Peptide bonds, which comprise proteins, are labilized. The gastric chief cells of the stomach secrete enzymes for protein breakdown (inactive pepsinogen, and in infancy rennin). The low pH activates pepsinogen into the enzyme pepsin, which then aids digestion by breaking the amino acid bonds, a process called proteolysis. In addition, many microorganisms are inhibited or destroyed in an acidic environment, preventing infection or sickness.

ChatGPTRate this definition:0.0 / 0 votes

1. gastric acid

   Gastric acid, also known as stomach acid, is a digestive fluid produced and secreted by the stomach lining cells known as parietal cells. It mainly consists of hydrochloric acid, water, and other substances such as potassium chloride and sodium chloride. Gastric acid plays a crucial role in the digestion process by breaking down food particles, absorption of nutrients, and fighting off microorganisms to prevent infections. It also converts pepsinogen to pepsin – an enzyme that aids in protein digestion.

WikidataRate this definition:0.0 / 0 votes

1. Gastric acid

   Gastric acid is a digestive fluid, formed in the stomach. It has a pH of 1.5 to 3.5 and is composed of hydrochloric acid as high as 0.1 M, and large quantities of potassium chloride and sodium chloride. The acid plays a key role in digestion of proteins, by activating digestive enzymes, and making ingested proteins unravel so that digestive enzymes break down the long chains of amino acids. Gastric acid is produced by cells lining the stomach, which are coupled to systems to increase acid production when needed. Other cells in the stomach produce bicarbonate, a base, to buffer the fluid, ensuring that it does not become too acidic. These cells also produce mucus, which forms a viscous physical barrier to prevent gastric acid from damaging the stomach. Cells in the beginning of the small intestine, or duodenum, further produce large amounts of bicarbonate to completely neutralize any gastric acid that passes further down into the digestive tract. The presence of gastric acid in the stomach and its function in digestion was first characterized by United States Army surgeon William Beaumont around 1830. Beaumont was able to study the stomach action of fur trapper Alexis St. Martin due to the latter's gastric fistula.

U.S. National Library of MedicineRate this definition:0.0 / 0 votes

1. Gastric Acid

   Hydrochloric acid present in GASTRIC JUICE.

Matched Categories

1. • Digestive Juice

How to pronounce gastric acid?

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Numerology

1. Chaldean Numerology

   The numerical value of gastric acid in Chaldean Numerology is: 8

2. Pythagorean Numerology

   The numerical value of gastric acid in Pythagorean Numerology is: 4

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=gastric acid
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Gastric_Acid
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Gastric_Acid
4. ^ ChatGPT
   https://chat.openai.com
5. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=gastric acid