definition stomach
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stomach stomach. n. 1. (Anatomy) (in vertebrates) the enlarged muscular saclike part of the alimentary canal in which food is stored until it has been partially digested and rendered into chyme. 2. (Zoology) the corresponding digestive organ in invertebrates.
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gaster the curved, muscular, saclike structure that is an enlargement of the alimentary canal (see digestive system) and lies between the esophagus and the small intestine; called also gaster. (See also Plates.) adj., adj gas´tric.
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ruminant first stomach, rumen-the first compartment of the stomach of a ruminant; here food is collected and returned to the mouth as cud for chewing. second stomach, reticulum-the second compartment of the stomach of a ruminant. omasum, psalterium, third stomach-the third compartment of the stomach of a ruminant.
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Stomach Cancer Gastric Cancer The stomach is in the upper tummy (abdomen). It is part of the gut (gastrointestinal tract). It lies in the upper part of the abdomen, just below the ribs. When we eat, food passes down the gullet (oesophagus) into the stomach. The stomach makes acid and some chemicals (enzymes) which help to digest food.
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- a (1) : a dilatation of the alimentary canal of a vertebrate communicating anteriorly with the esophagus and posteriorly with the duodenum b: a cavity in an invertebrate animal that is analogous to a stomach c: the part of the body that contains the stomach: belly, abdomen. 2.
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stomach An organ in the digestive system, on the left side of the body behind the lower rib cage, that receives chewed food from the esophagus. Tiny glands in the stomach's lining secrete gastric juice, which contains acids, mucus, and enzymes.
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pitnoun  [ C] uk â / pÉªt / us â/ pÉªt / › A pit is also the area in the front of a theater where the musicians perform. The pit of your stomach › The pit of your stomach is the center of your body, where you feel esp. fear and anxiety: I got a sick feeling in the pit of my stomach before the performance. pit noun [C] (SEED)
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Stomach The stomach lies between the esophagus and the duodenum (the first part of the small intestine). It is in the left upper part of the abdominal cavity. The top of the stomach lies against the diaphragm.he stomach is surrounded by parasympathetic (stimulant) and orthosympathetic (inhibitor) plexuses (networks of blood vessels and nerves in the anterior gastric, posterior, superior and inferior, celiac and myenteric), which regulate both the secretions activity and the motor (motion) activity of its muscles.
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Gas in the Digestive Tract Definition & Facts. Gas is air in your digestive tract. Gas leaves your body through your mouth when you burp or through your anus when you pass gas. People may think that they burp or pass gas too often and that they have too much gas. However, having too much gas is rare. Symptoms & Causes.
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- abdomen, belly, stomach, venter - the region of the body of a vertebrate between the thorax and the pelvis. paries, wall - (anatomy) a layer (a lining or membrane) that encloses a structure; stomach walls.
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Medical Definition of Abdominal Medical Definition of Abdominal Abdominal: Relating to the abdomen, the belly, that part of the body that contains all of the structures between the chest and the pelvis. The abdomen is separated anatomically from the chest by the diaphragm, the powerful muscle spanning the body cavity below the lungs. The abdomen includes a host of organs including the stomach, small intestine, colon, rectum, liver, spleen, pancreas, kidneys, appendix, gallbladder, and bladder.
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Contents: Abdomen vs Stomach The stomach is an organ of digestion. It has a saclike shape and is located between the esophagus and the intestines.Almost every animal has a stomach. The human stomach is a muscular, elastic, pear-shaped bag, lying crosswise in the abdominal cavity beneath the diaphragm.It changes size and shape according to is position of the body and the amount of food inside. The stomach is about 12 inches (30.5 cm) long and is 6 inches. (15.2 cm) wide at its widest point.t has a saclike shape and is located between the esophagus and the intestines. Almost every animal has a stomach.
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- Stomach cancer, also called gastric cancer, is a disease in which the cells in the stomach divide without control or order and take on an abnormal appearance. These cancerous cells often spread to nearby organs and to other parts of the body.
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belly Definition of belly for English Language Learners. : 1  a person's stomach or the part of the body that contains the stomach. : 2  the part of an animal's body that is like a person's belly. : 3  a curved or rounded surface or part.
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Definitions &Translations Freebase(0.00 / 0 votes)Rate this definition: The fundus of the stomach is the left portion of the stomach's body, and is marked off from the remainder of the body by a plane passing horizontally through the cardiac orifice. As the rounded part of the upper stomach, it allows for an accumulation of stomach gases produced by chemical digestion.
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Picture of the stomach Picture of the stomach. The stomach is a muscular organ found on the left side of the upper abdomen. Food makes its way to the stomach through the oesophagus. As food reaches the end of the oesophagus, it enters the stomach through a muscular valve called the lower oesophageal sphincter.he stomach is a muscular organ found on the left side of the upper abdomen. Food makes its way to the stomach through the oesophagus.
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- The stomach is a muscular, hollow, dilated part of the digestive system which functions as an important organ of the digestive tract in many animals, including vertebrates, echinoderms, insects (mid-gut), and molluscs.n adult humans, the stomach has a relaxed, near empty volume of about 45 to 75 milliliters. Because it is a distensible organ, it normally expands to hold about one litre of food. The stomach of a newborn human baby will only be able to retain about 30 milliliters.
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Are the stomach and belly the same thing? Stomach is the organ of primary digestion located between the esophagus and the duodenum. In brief: Not really. Belly is a generic term for abdomen - not very precise. Docs don't use it too frequently if a better term will suffice. Stomach is the organ of primary digestion located between the esophagus and the duodenum.
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Picture of the Stomach All rights reserved. The stomach is a muscular organ located on the left side of the upper abdomen. The stomach receives food from the esophagus. As food reaches the end of the esophagus, it enters the stomach through a muscular valve called the lower esophageal sphincter. The stomach secretes acid and enzymes that digest food. Ridges of muscle tissue called rugae line the stomach. The stomach muscles contract periodically, churning food to enhance digestion. The pyloric sphincter is a muscular valve that opens to allow food to pass from the stomach to the small intestine.
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Stomach The stomach is a muscular, hollow organ in the gastrointestinal tract of humans and many other animals, including several invertebrates. The stomach has a dilated structure and functions as a vital digestive organ. In the digestive system the stomach is involved in the second phase of digestion, following mastication. In humans and many other animals, the stomach is located between the oesophagus and the small intestine. It secretes digestive enzymes and gastric acid to aid in food digestion. Th
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- noun. 1  1also gutsThe stomach or belly. 2  2informal often as modifier Used in reference to a feeling or reaction based on an instinctive emotional response rather than considered thought. 3  3gutsinformal Personal courage and determination; toughness of character.
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What is stomach cancer? What is stomach cancer? Stomach cancer is a malignant tumour that starts in cells of the stomach. Malignant means that it is a cancerous tumour that can spread, or metastasize, to other parts of the body. The stomach is part of the digestive system. It is a muscular, sac-like organ in the upper abdomen. In the stomach, the food is mixed with digestive juices.
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Is It Crohnâs or Just an Upset Stomach? The stomach is an organ located in the upper abdomen between the esophagus and the small intestine. The stomach performs the following functions: 1  takes in and breaks down food. 2  destroys foreign agents.  aids in digestion.
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stomach 1. (Anatomy) (in vertebrates) the enlarged muscular saclike part of the alimentary canal in which food is stored until it has been partially digested and rendered into chyme. 4. desire, appetite, or inclination: I have no stomach for arguments.
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- The stomach is a muscular, hollow, dilated part of the gastrointestinal tract that functions as a vital digestive organ. The stomach is present in humans and many other animals, including several invertebrates (e.g., echinoderms, insects, and molluscs).
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Picture of the Stomach All rights reserved. The stomach is a muscular organ located on the left side of the upper abdomen. The stomach receives food from the esophagus. As food reaches the end of the esophagus, it enters the stomach through a muscular valve called the lower esophageal sphincter.