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Related Concept Videos

Gastric Motility01:16

Gastric Motility

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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...
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Gastric Emptying01:16

Gastric Emptying

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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...
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Gastric Phase of Digestion01:26

Gastric Phase of Digestion

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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...
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Neural Regulation01:37

Neural Regulation

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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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Hormonal Regulation01:40

Hormonal Regulation

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Hormones regulate a significant portion of digestion through activation of the neuroendocrine system. The neuroendocrine system of digestion contains many different hormones all with multiple functions that are both, directly and indirectly, involved in digestion.
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What is Monogastric Digestion?01:50

What is Monogastric Digestion?

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The human body contains a monogastric digestive system. In a monogastric digestive system, the stomach only contains one chamber in which it digests food. Several other animal species also have monogastric digestive systems, including pigs, horses, dogs, and birds. This chapter, however, focuses on the human digestive system.
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Author Spotlight: Generation of and Comparison Between Patient-Derived Gastric Organoids from Different Regions of the Stomach
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Author Spotlight: Generation of and Comparison Between Patient-Derived Gastric Organoids from Different Regions of the Stomach

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Gastric anthrax with massive ascites.

W Dutz, F Saidi, E Kohout

    Gut
    |April 1, 1970
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    Summary
    This summary is machine-generated.

    A rare case of primary gastrointestinal anthrax infection was documented. This unusual presentation involved the stomach and led to significant fluid accumulation in the abdomen (ascites).

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    Area of Science:

    • Gastroenterology
    • Infectious Diseases
    • Pathology

    Background:

    • Anthrax is typically an infection of the skin, lungs, or intestines.
    • Primary gastric anthrax is an extremely rare form of the disease.

    Observation:

    • A patient presented with symptoms suggestive of severe abdominal distress.
    • Diagnostic imaging revealed massive ascites, or abdominal fluid buildup.
    • Endoscopic examination identified lesions consistent with anthrax in the stomach.

    Findings:

    • The case confirmed primary anthrax infection localized to the stomach.
    • The infection resulted in significant pathological changes and fluid accumulation.

    Implications:

    • This case highlights the importance of considering unusual presentations of anthrax.
    • It underscores the need for prompt diagnosis and appropriate treatment in gastrointestinal anthrax.
    • Further research into the pathogenesis and management of primary gastric anthrax is warranted.