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Hormonal Regulation

Hormonal Regulation

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.

Hormonal Regulation

Hormonal Regulation

The renin-aldosterone system is an endocrine system which guides the renal absorption of water and electrolytes, thus managing blood pressure and osmoregulation. Activation of the system begins in the kidneys with a small cluster of cells adjacent to the afferent and efferent blood vessels of the renal corpuscle. As the nephrons are filtering blood, juxtaglomerular cells monitor blood pressure. If they detect a decrease in pressure, they release the hormone renin into the bloodstream.

Regulation of the Digestive System

Regulation of the Digestive System

Digestive activity regulation hinges on three primary components. Activation is prompted by a multitude of mechanical and chemical indicators, primarily detected by receptors within the stomach and intestines' walls. These receptors predominantly respond to factors such as mechanical stretching of the organ walls, changes in pH and osmolarity, and the presence of digesting materials and their by-products.
The effectors in this regulation system are glands and smooth muscles. Activation of...

Hormones Secreted by the Stomach

Hormones Secreted by the Stomach

Enteroendocrine cells, accounting for only 1% of stomach epithelial cells, play a significant role in digestion and are classified by their digestive hormone secretions.
Each of these hormones secreted by different enteroendocrine cells plays a unique role in digestion. Here are a few examples:

Intestinal Phase of Digestion

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...

Gut-Brain Axis

Gut-Brain Axis

The gut–brain axis is a bidirectional communication system that connects the gastrointestinal tract and the brain. This interaction is mediated through multiple pathways, including the vagus nerve, hormonal signals, immune responses, and chemical messengers produced by gut microbes.Microbial Contributions to Brain FunctionGut microbiota contributes significantly to brain function by producing neuroactive compounds. These include neuroactive compounds that influence neurotransmitters such...

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Related Experiment Video

Updated: May 6, 2026

Mixed Primary Cultures of Murine Small Intestine Intended for the Study of Gut Hormone Secretion and Live Cell Imaging of Enteroendocrine Cells

Mixed Primary Cultures of Murine Small Intestine Intended for the Study of Gut Hormone Secretion and Live Cell Imaging of Enteroendocrine Cells

Published on: April 20, 2017

Gastrointestinal hormones.

Annual Review of Medicine

|January 1, 1978

Summary

This summary is machine-generated.

Gastrointestinal peptides are crucial for bodily functions, and immunoassay techniques have advanced their study. However, their full regulatory roles and significance in physiology and disease are still under early investigation.

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Mixed Primary Cultures of Murine Small Intestine Intended for the Study of Gut Hormone Secretion and Live Cell Imaging of Enteroendocrine Cells

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Area of Science:

Gastroenterology
Endocrinology
Peptide Biology

Background:

Gastrointestinal peptides play vital roles in regulating numerous physiological processes.
Understanding these peptides is crucial for comprehending digestive system function and dysfunction.
Advancements in measurement techniques have facilitated research into these molecules.

Purpose of the Study:

To review the current understanding of gastrointestinal peptides.
To highlight the importance of immunoassay techniques in peptide research.
To emphasize the need for further investigation into the regulatory roles of these peptides.

Main Methods:

Literature review of existing research on gastrointestinal peptides.
Discussion of immunoassay techniques for peptide quantification.
Synthesis of current knowledge on peptide localization and biological actions.

Main Results:

Significant progress has been made in identifying and characterizing gastrointestinal peptides.
Immunoassay development has enabled quantitative measurements, providing insights into peptide function.
Existing data reveals peptide involvement in both normal physiological events and pathophysiological conditions.

Conclusions:

Knowledge regarding gastrointestinal peptides has expanded considerably.
While much is known, the complete regulatory significance of these peptides remains largely unexplored.
Further research is essential to fully elucidate the participation and importance of gastrointestinal peptides.