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Related Concept Videos

Gastric Motility01:16

Gastric Motility

3.2K
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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Primary Active Transport01:47

Primary Active Transport

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In contrast to passive transport, active transport involves a substance being moved through membranes in a direction against its concentration or electrochemical gradient. There are two types of active transport: primary active transport and secondary active transport. Primary active transport utilizes chemical energy from ATP to drive protein pumps that are embedded in the cell membrane. With energy from ATP, the pumps transport ions against their electrochemical gradients—a direction...
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Primary Active Transport01:29

Primary Active Transport

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In contrast to passive transport, active transport involves a substance being moved through membranes in a direction against its concentration or electrochemical gradient. There are two types of active transport: primary active transport and secondary active transport. Primary active transport utilizes chemical energy from ATP to drive protein pumps embedded in the cell membrane. With energy from ATP, the pumps transport ions against their electrochemical gradients—a direction they would...
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Primary and Secondary Growth in Roots and Shoots03:02

Primary and Secondary Growth in Roots and Shoots

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Vascular plants, which account for over 90% of the Earth’s vegetation, all undergo primary growth—which lengthens roots and shoots. Many land plants, notably woody plants, also undergo secondary growth—which thickens roots and shoots.
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Related Experiment Video

Updated: Feb 9, 2026

Development of Compendium for Esophageal Squamous Cell Carcinoma
03:36

Development of Compendium for Esophageal Squamous Cell Carcinoma

Published on: April 12, 2024

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Primary Gastric Squamous Cell Carcinoma.

Patricia Guzman Rojas1, Jignesh Parikh2, Priya Vishnubhotla3

  • 1Internal Medicine, UCF College of Medicine.

Cureus
|June 1, 2018
PubMed
Summary
This summary is machine-generated.

Primary gastric squamous cell carcinoma (PGSCC) is a rare gastric malignancy. This case highlights the importance of recognizing PGSCC for timely diagnosis and specialized treatment.

Keywords:
gastric cancersquamous cell cancer

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Area of Science:

  • Gastroenterology
  • Oncology
  • Pathology

Background:

  • Primary gastric squamous cell carcinoma (PGSCC) is exceptionally rare.
  • Clinical presentation often mimics other gastric tumors, complicating early diagnosis.

Observation:

  • A 66-year-old male presented with bloating and early satiety.
  • Endoscopy revealed a 2.5 cm polypoid lesion in the proximal gastric corpus.
  • Biopsies confirmed primary gastric squamous cell carcinoma.

Findings:

  • The patient underwent successful partial gastrectomy.
  • Diagnostic criteria for PGSCC were established in 2011 by the Japanese Gastric Cancer Association.
  • Squamous cell carcinoma is a potential cause of primary gastric cancer.

Implications:

  • Gastroenterologists must maintain awareness of PGSCC.
  • Prompt referral to specialized centers is crucial for appropriate management.
  • Early recognition facilitates surgical resection and improved patient outcomes.