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Related Concept Videos

What is Monogastric Digestion?01:50

What is Monogastric Digestion?

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.
Pyloric Obstruction01:11

Pyloric Obstruction

Pyloric obstruction, also referred to as gastric outlet obstruction, is a condition characterized by narrowing or blockage at the pylorus—the muscular valve regulating the flow of stomach contents into the duodenum. When this passage becomes impaired, the stomach cannot effectively empty its contents into the small intestine. This disruption leads to a range of gastrointestinal symptoms, including early satiety, bloating, epigastric pain, postprandial nausea, persistent vomiting, and...
Intestinal Phase of Digestion01:29

Intestinal Phase of Digestion

The intestinal phase of digestion is the third and final stage of the digestive process, occurring after the cephalic and gastric phases. It begins when chyme, a partially digested mixture of food and digestive enzymes, enters the small intestine from the stomach. This phase is crucial for nutrient absorption and involves complex hormonal and enzymatic interactions.
The arrival of the chyme in the small intestine distends the duodenum, which triggers the enterogastric reflex. This distension...
Digestive Functions of the Large Intestine01:20

Digestive Functions of the Large Intestine

The large intestine is where the final stages of digestion happen. When the cecum receives chyme, it contains undigested carbohydrates that undergo fermentation. Gut bacteria ferment these carbohydrates to produce short-chain fatty acids that provide some energy and help synthesize essential vitamins.
As the chyme moves to the colon, it triggers two characteristic sluggish contractions - haustral churning and mass peristalsis. Haustral churning involves the rhythmic contraction and relaxation...
Protein Digestion01:02

Protein Digestion

Protein digestion begins in the stomach, where the highly acidic environment can easily disrupt protein structure by exposing the peptide bonds of polypeptide chains. After polypeptide chains are broken into individual amino acids by a series of digestive enzymes, the amino acids are transported to the liver via the bloodstream to produce energy.
Other Disorders of Digestive System01:30

Other Disorders of Digestive System

The gastrointestinal tract is susceptible to various disorders. If the lower esophageal sphincter is damaged, stomach acid can flow back into the esophagus, causing irritation and inflammation of the lining. This condition is called gastroesophageal reflux disease (known as heartburn) and may cause chest pain and difficulty swallowing. In the stomach, prolonged use of nonsteroidal anti-inflammatory drugs like aspirin, chronic alcohol consumption, bacterial infections such as Helicobacter...

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Related Experiment Video

Updated: Jun 2, 2026

Using Multi-fluorinated Bile Acids and In Vivo Magnetic Resonance Imaging to Measure Bile Acid Transport
08:42

Using Multi-fluorinated Bile Acids and In Vivo Magnetic Resonance Imaging to Measure Bile Acid Transport

Published on: November 27, 2016

[Involutory maldigestion].

A I Parfenov

    Eksperimental'Naia I Klinicheskaia Gastroenterologiia = Experimental & Clinical Gastroenterology
    |May 13, 2011
    PubMed
    Summary
    This summary is machine-generated.

    Indigestion in aging adults stems from reduced digestive enzyme efficiency in the gut. Treatment involves pancreatic enzymes and probiotics to restore digestive function.

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    In vitro Digestion of Emulsions in a Single Droplet via Multi Subphase Exchange of Simulated Gastrointestinal Fluids

    Published on: November 18, 2022

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    Last Updated: Jun 2, 2026

    Using Multi-fluorinated Bile Acids and In Vivo Magnetic Resonance Imaging to Measure Bile Acid Transport
    08:42

    Using Multi-fluorinated Bile Acids and In Vivo Magnetic Resonance Imaging to Measure Bile Acid Transport

    Published on: November 27, 2016

    In vitro Digestion of Emulsions in a Single Droplet via Multi Subphase Exchange of Simulated Gastrointestinal Fluids
    10:20

    In vitro Digestion of Emulsions in a Single Droplet via Multi Subphase Exchange of Simulated Gastrointestinal Fluids

    Published on: November 18, 2022

    Area of Science:

    • Gastroenterology
    • Digestive Physiology
    • Geriatric Medicine

    Background:

    • Aging is associated with a decline in digestive enzyme production and function.
    • Reduced pancreatic, small intestine, and stomach enzyme efficiency leads to maldigestion.
    • Involutive maldigestion presents as a decrease in fractional absorptive power.

    Discussion:

    • The study identifies age-related decline in digestive enzyme activity as a primary cause of indigestion.
    • Symptoms of involutive maldigestion include diminished nutrient absorption and digestive capacity.
    • Therapeutic strategies focus on supplementing digestive enzymes and modulating gut microbiota.

    Key Insights:

    • Age-related reduction in digestive enzyme efficiency is a significant factor in indigestion.
    • Pancreatic enzymes, prebiotics, and probiotics can help manage symptoms of involutive maldigestion.
    • Restoring digestive function is crucial for improving nutrient absorption in aging populations.

    Outlook:

    • Further research into age-specific enzyme deficiencies and targeted therapies is warranted.
    • Developing novel enzyme replacement strategies could improve digestive health in the elderly.
    • Long-term studies on the efficacy of probiotics and prebiotics in managing age-related maldigestion are needed.