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Related Concept Videos

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The human stomach is a vital part of the digestive system, performing multiple functions. It is located within the peritoneum, a serous membrane that lines the abdominal cavity. The stomach plays a central role in processing food substances and interacts with other digestive organs through coordinated digestive processes. The stomach has a characteristic J-shape and is divided into four main regions. The cardia is the first section where the esophagus connects to the stomach and is the entry...
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The stomach comprises several layers that work together to facilitate digestion and protect the organ. The outermost layer is called the serosa, which provides support and protection to the stomach. The muscularis externa layer is responsible for the mechanical breakdown of food by contracting and moving the stomach. The submucosa layer, located beneath the muscularis externa, contains connective tissue, blood vessels, nerves, and glands that secrete mucus and other substances essential for...
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Gastrulation establishes the three primary tissues of an embryo: the ectoderm, mesoderm, and endoderm. This developmental process relies on a series of intricate cellular movements, which in humans transforms a flat, “bilaminar disc” composed of two cell sheets into a three-tiered structure. In the resulting embryo, the endoderm serves as the bottom layer, and stacked directly above it is the intermediate mesoderm, and then the uppermost ectoderm. Respectively, these tissue strata...
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This lesson explores three gastrointestinal imaging techniques: radionuclide testing, colonic transit studies, and virtual colonoscopy.
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The human digestive system is an intricate and essential network for nutrient absorption and waste elimination. It encompasses the gastrointestinal (GI) tract and several accessory organs.
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Anatomy of the Intestines01:23

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Although digestion of proteins, carbohydrates, and lipids may begin in the stomach, it is completed in the intestine. The absorption of nutrients, water, and electrolytes from food and drink also occurs in the intestine. The intestines can be divided into two structurally distinct organs—the small and large intestines.
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Related Experiment Video

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Fetal Echocardiography and Pulsed-wave Doppler Ultrasound in a Rabbit Model of Intrauterine Growth Restriction
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Histomorphometric study of the goat stomach during prenatal development.

Angela Garcia1, Pedro Rodriguez, Javier Masot

  • 1Department of Veterinary Histology, Faculty of Veterinary Medicine, University of Extremadura, Caceres, Spain.

Animal Science Journal = Nihon Chikusan Gakkaiho
|July 22, 2014
PubMed
Summary
This summary is machine-generated.

Goat stomach tissue layers exhibit varied prenatal growth rates. Epithelial layers in non-glandular compartments grew faster than the gastric wall, while the tunica muscularis showed consistent growth.

Keywords:
developmentgoathistomorphometryprenatal

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Area of Science:

  • Veterinary Anatomy
  • Developmental Biology
  • Morphometrics

Background:

  • The prenatal development of the ruminant stomach is complex, involving differential growth of its distinct tissue layers.
  • Understanding these growth dynamics is crucial for comprehending normal organogenesis and potential developmental anomalies.

Purpose of the Study:

  • To conduct a morphometric analysis of prenatal goat stomach tissue layers.
  • To model and analyze the prenatal growth rates of these layers using mathematical approaches.

Main Methods:

  • A total of 90 goat embryos and fetuses were analyzed.
  • Morphometric data from prenatal stages until birth were collected.
  • Mathematical models were fitted to the morphometric data to determine growth rates.

Main Results:

  • Gastric wall growth was slower than overall body length growth.
  • The rumen showed the slowest growth rate among stomach compartments.
  • Epithelial layers in non-glandular compartments grew faster than the gastric wall, with exceptions in the abomasum.
  • Lamina propria and submucosa growth rates varied across compartments and developmental stages.
  • The tunica muscularis consistently grew faster than the gastric wall.
  • Serosa thickness increased throughout gestation, with a noted growth rate decline in the omasum.

Conclusions:

  • Prenatal gastric wall growth dynamics are dictated by the individual growth rates of its constituent tissue layers.
  • Differential growth patterns were observed across various tissue layers and stomach compartments during goat prenatal development.