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Review and Preview

Review and Preview

In statistics, several tools are used to interpret the data. Measures of central tendency represent the characteristics of the data, such as mean, median, and mode. Additionally, measures of variance like standard deviation and range are used to find the spread of data from the mean. Relative standing measures the distance between data locations. Commonly used measures of relative standings are percentile, z score, and quartiles.
Percentiles are a type of fractile that partition data into...

Review and Preview

Review and Preview

Data are individual items of information obtained from a population or sample. Data may be classified as qualitative (categorical), quantitative continuous, or quantitative discrete. Because it is not practical to measure the entire population in a study, researchers use samples to represent the population. A random sample is a representative group from the population chosen by using a method that gives each individual in the population an equal chance of being included in the sample. Random...

Gastric Motility

Gastric Motility

Gastric motility is the coordinated contraction and relaxation of stomach muscles that convert ingested food into chyme, a semi-liquid substance ready for further digestion in the intestines. The process begins with the vagus nerve inducing the relaxation of the smooth muscles in the fundus and body of the stomach, allowing these regions to expand and accommodate up to approximately 1.5 liters of food and liquid.
Peristaltic Waves and Chyme Formation
Upon food entry, the stomach initiates...

Gastric Emptying

Gastric Emptying

Gastric emptying occurs when the stomach gradually releases chyme into the duodenum. When the stomach is distended, it triggers the release of gastrin, a hormone that promotes gastric acid secretion to aid in digestion. Additionally, stomach distension contributes to peristaltic waves that propel gastric contents toward the pyloric region. The gastroenteric reflex, on the other hand, primarily stimulates peristalsis in the intestines, facilitating the movement of contents further along the...

Gastric Phase of Digestion

Gastric Phase of Digestion

The gastric phase of digestion begins as soon as food enters the stomach. The incoming food bolus triggers neural and hormonal mechanisms, which last approximately 3 to 4 hours. During this phase, the stomach undergoes significant changes to prepare the food for further digestion and absorption.
When food enters the stomach, it stretches the stomach walls and activates stretch receptors. This triggers local reflexes of the enteric nervous system, mediated through the myenteric plexus. These...

Neural Regulation

Neural Regulation

Digestion begins with a cephalic phase that prepares the digestive system to receive food. When our brain processes visual or olfactory information about food, it triggers impulses in the cranial nerves innervating the salivary glands and stomach to prepare for food.

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Related Experiment Video

Updated: Jan 24, 2026

One-anastomosis Gastric Bypass OAGB in Rats

One-anastomosis Gastric Bypass OAGB in Rats

Published on: November 10, 2018

Gastric Diverticulum: A Comprehensive Review.

Jamil Shah¹, Kalpesh Patel¹, Tagore Sunkara²

¹Division of Gastroenterology and Hepatology, Department of Medicine, Rutgers New Jersey Medical School, University Hospital, Newark, New Jersey, USA.

Inflammatory Intestinal Diseases

|May 22, 2019

Summary

This summary is machine-generated.

Gastric diverticula (GD) are rare stomach outpouchings. While often asymptomatic, they can cause serious complications requiring surgical intervention.

Keywords:

Diverticula Gastric diverticulum Stomach diverticulum

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Area of Science:

Gastroenterology
Surgical Anatomy

Background:

Gastric diverticula (GD) are rare outpouchings of the stomach wall, predominantly in the fundus.
They represent an uncommon anomaly within the spectrum of gastrointestinal diverticula.

Purpose of the Study:

To provide a comprehensive literature review of gastric diverticula.
To elucidate the pathogenesis, clinical features, diagnostic strategies, and management of GD.

Main Methods:

Literature review of gastric diverticula.

Main Results:

Most gastric diverticula are asymptomatic and found incidentally.
Variable symptoms can occur, and rare, life-threatening complications necessitate surgical treatment.

Conclusions:

Gastric diverticula, though uncommon, require understanding of their presentation and management.
Surgical intervention is reserved for symptomatic or complicated cases.