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Diagram showing parts of the stomach. The human stomach can be divided into four sections, beginning at the cardia followed by the fundus, the body and the pylorus. [7] [8] The gastric cardia is where the contents of the esophagus empty from the gastroesophageal sphincter into the cardiac orifice, the opening into the gastric cardia.
The human gastrointestinal tract consists of the esophagus, stomach, and intestines, and is divided into the upper and lower gastrointestinal tracts. [3] The GI tract includes all structures between the mouth and the anus , [ 4 ] forming a continuous passageway that includes the main organs of digestion, namely, the stomach , small intestine ...
The human digestive system consists of the gastrointestinal tract plus the accessory organs of digestion (the tongue, salivary glands, pancreas, liver, and gallbladder). Digestion involves the breakdown of food into smaller and smaller components, until they can be absorbed and assimilated into the body.
Size of the human stomach varies significantly in adults, with one study showing volumes ranging from 520 cm 3 (32 cu in) to 1,536 cm 3 (93.7 cu in) and weights ranging from 77 grams (2.7 oz) to 453 grams (16.0 oz).
Waist size (waist circumference) is an indicator of abdominal obesity and is one of the criteria for diagnosing the metabolic syndrome. Excess abdominal fat is a risk factor for developing heart disease and other obesity related diseases.
The analogous gross morphologies of a human and an ant. In the worker ant, the abdomen consists of the propodeum fused to the thorax and the metasoma, itself divided into the narrow petiole and bulbous gaster. In insects, the abdomen contains the insect's digestive tract and reproductive organs. It consists of eleven segments in most orders of ...
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The abdominal cavity is a large body cavity in humans [1] and many other animals that contain organs.It is a part of the abdominopelvic cavity. [2] It is located below the thoracic cavity, and above the pelvic cavity.