stomach
Sign in to saveThe stomach is a muscular, hollow organ in the upper gastrointestinal tract of humans and many other animals, including several invertebrates. The Ancient Greek name for the stomach is gaster which is used as gastric in medical terms related to the stomach. The stomach has a dilated structure and functions as a vital organ in the digestive system. The stomach is involved in the gastric phase of digestion, following the cephalic phase in which the sight and smell of food and the act of chewing are stimuli. In the stomach a chemical breakdown of food takes place by means of secreted digestive en
AI overview
The stomach is a muscular, hollow organ in your upper digestive tract that plays a vital role in breaking down food through chemical processes. It receives food after you chew it and uses secreted digestive enzymes to begin the chemical breakdown of what you've eaten, making it possible for your body to absorb nutrients.
AI-generated from the Wikipedia summary — may contain errors.
Key facts
- Anatomy.Name
- Stomach
- Anatomy.Latin
- ventriculus, stomachus
- Anatomy.Greek
- στόμαχος (stómakhos)
- Anatomy.Image
- File:Gray1046.svg
- Anatomy.Caption
- Sections of the human stomach
- Anatomy.Image2
- Tractus intestinalis ventriculus.svg
- Anatomy.Caption2
- Scheme of digestive tract, with stomach in red
- Anatomy.Precursor
- Foregut
- Anatomy.System
- Digestive system
- Anatomy.Artery
- Right gastric artery, left gastric artery, right gastro-omental artery, left gastro-omental artery, short gastric arteries
- Anatomy.Vein
- Right gastric vein, left gastric vein, right gastroepiploic vein, left gastroepiploic vein, short gastric veins
Article
26 sectionsContents
- Structure
- Sections
- Anatomical proximity
- Blood supply
- Lymphatic drainage
- Microanatomy
- Wall
- Glands
- Gene and protein expression
- Development
- Function
- Digestion
- Mechanical digestion
- Chemical digestion
- Absorption
- Control of secretion and motility
- Other
- Clinical significance
- Diseases
- Surgery
- Etymology
- Other animals
- Additional images
- See also
- References
- External links
The stomach is a muscular, hollow organ in the upper gastrointestinal tract of humans and many other animals, including several invertebrates. The Ancient Greek name for the stomach is gaster which is used as gastric in medical terms related to the stomach. The stomach has a dilated structure and functions as a vital organ in the digestive system. The stomach is involved in the gastric phase of digestion, following the cephalic phase in which the sight and smell of food and the act of chewing are stimuli. In the stomach a chemical breakdown of food takes place by means of secreted digestive enzymes and gastric acid. It also plays a role in regulating gut microbiota, influencing digestion and overall health.
The stomach is located between the esophagus and the small intestine. The pyloric sphincter controls the passage of partially digested food (chyme) from the stomach into the duodenum, the first and shortest part of the small intestine, where peristalsis takes over to move this through the rest of the intestines.