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The stomach is distensible, and can normally expand to hold about one litre of food. [3] In a newborn human baby the stomach will only be able to hold about 30 millilitres. The maximum stomach volume in adults is between 2 and 4 litres, [4] [5] although volumes of up to 15 litres have been observed in extreme circumstances. [6]
This allows the stomach to expand, therefore increasing the volume of the stomach without increasing pressure. [2] They also provide the stomach with an increased surface area for nutrient absorption during digestion. [2] Gastric folds may be seen during esophagogastroduodenoscopy or in radiological studies. [3] [4]
The stomach is a distensible organ and can normally expand to hold about one litre of food. [22] This expansion is enabled by a series of gastric folds in the inner walls of the stomach. The stomach of a newborn baby will only be able to expand to retain about 30 ml.
Whilst the muscularis externa is similar throughout the entire gastrointestinal tract, an exception is the stomach which has an additional inner oblique muscular layer to aid with grinding and mixing of food. The muscularis externa of the stomach is composed of the inner oblique layer, middle circular layer, and the outer longitudinal layer.
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For persons of normal BMI, SAD should be under 25 centimetres (9.8 in). When this measure exceeds 30 centimetres (12 in) it correlates to increased cardiovascular risk and insulin resistance. [2] For men in their 40s, a SAD greater than 25 cm also predicts significantly higher risk of developing Alzheimer's disease 30 years later. [4]
The abdomen (colloquially called the belly, tummy, midriff, tucky, or stomach [citation needed]) is the front part of the torso between the thorax (chest) ...
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