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Related Concept Videos

Liver Physiology01:30

Liver Physiology

The liver, an essential organ in the human body, performs over 200 vital functions that can be broadly categorized into metabolic, hematological, endocrine regulation, and bile production.
Metabolic Regulation:
The liver is the central organ involved in regulating blood composition. It stabilizes blood glucose levels, maintaining them within the range of  70–110 mg/dL. When these levels drop, the liver breaks down glycogen reserves and releases glucose into the bloodstream. It can also...
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Hepatic Portal System

The hepatic portal system, a critical part of our circulatory framework, transports nutrient-laden, deoxygenated blood from the gastrointestinal tract and spleen to the liver. This ingenious system plays an indispensable role in maintaining our body's metabolic equilibrium.
At its core, the hepatic portal vein is the result of a confluence of the superior and inferior mesenteric veins along with the splenic vein. Each of these veins has a unique role. The superior mesenteric vein is responsible...
Extrinsic and Intrinsic Pathways of Hemostasis01:20

Extrinsic and Intrinsic Pathways of Hemostasis

Blood clotting or coagulation involves extrinsic and intrinsic pathways, which ultimately merge into the common pathway, forming a fibrin clot.
The Extrinsic Pathway
The extrinsic pathway of coagulation is typically initiated by tissue damage that exposes blood to tissue factor (TF), a protein released by the damaged tissue cells outside the blood vessels—this interaction with TF triggers biochemical reactions involving specific clotting factors. The key player here is Factor VII, which forms a...
Liver Histology01:27

Liver Histology

The microscopic anatomy of the liver is a complex and intricate system that comprises numerous structural units known as liver lobules, each of which is comparable in size to a sesame seed. These hexagonal structures consist of plates of liver cells or hepatocytes, which are characterized by their versatility and abundance of cellular apparatus like rough and smooth ER, Golgi apparatus, peroxisomes, and mitochondria.
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Introduction to Hemostasis01:05

Introduction to Hemostasis

Hemostasis is a complex physiological process that prevents excessive bleeding when a blood vessel is injured. It's crucial for maintaining the integrity of the circulatory system, as it ensures that our blood remains fluid while still within the vascular network and yet clots to prevent blood loss upon vessel injury.
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Updated: Jun 19, 2026

In vivo Liver Endocytosis Followed by Purification of Liver Cells by Liver Perfusion
12:35

In vivo Liver Endocytosis Followed by Purification of Liver Cells by Liver Perfusion

Published on: November 10, 2011

The liver and the haemeostatic system.

Abeer Khalid Al Ghumlas1, Abdel Galil Mohammed AbdelGader

  • 1Department of Physiology, King Khalid University Hospital, Riyadh, Saudi Arabia.

Saudi Journal of Gastroenterology : Official Journal of the Saudi Gastroenterology Association
|October 29, 2009
PubMed
Summary

The liver is crucial for hemostasis, synthesizing clotting factors and anticoagulants. Liver disease disrupts these functions, leading to bleeding disorders and reflecting disease severity through hemostatic factor measurements.

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Area of Science:

  • Hepatology
  • Hematology
  • Hemostasis and Thrombosis

Background:

  • The liver synthesizes most coagulation factors, natural anticoagulants, and fibrinolytic factors.
  • It also clears activated clotting factors, fibrinolytic factors, and fibrin degradation products.
  • Liver dysfunction significantly impacts the hemostatic system.

Purpose of the Study:

  • To elucidate the complex hemostatic defects arising from liver disease.
  • To highlight the role of the liver in maintaining hemostatic balance.
  • To demonstrate the utility of hemostatic factor measurement in assessing liver damage.

Main Methods:

  • Review of the liver's role in hemostasis.
  • Analysis of hemostatic abnormalities in liver disease.
  • Correlation of hemostatic factor levels with liver damage severity.

Main Results:

  • Liver disease causes decreased synthesis of coagulation factors and natural anticoagulants.
  • Abnormal protein synthesis (e.g., dysfibrinogen) and platelet defects occur.
  • Enhanced fibrinolytic activity and consumptive coagulopathy are observed, leading to hemorrhagic diathesis.

Conclusions:

  • Liver disease results in multifactorial hemostatic defects, including decreased factor synthesis and enhanced fibrinolysis.
  • These hemostatic abnormalities contribute to the hemorrhagic complications of liver disease.
  • Hemostatic factor levels serve as indicators of the extent of liver damage.