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Related Concept Videos

Development of the Lymphatic System01:15

Development of the Lymphatic System

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The development of lymphatic tissues and vessels in embryonic life begins around the fifth week. These structures originate from the mesoderm layer, with lymph sacs emerging from developing veins.
The first lymph sacs to form are the paired jugular lymph sacs located at the junction of the internal jugular and subclavian veins. From these sacs, lymphatic capillary plexuses extend to the thorax, upper limbs, neck, and head, eventually forming lymphatic vessels. Each jugular lymph sac maintains a...
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Introduction to Lymphatic and Immune System01:22

Introduction to Lymphatic and Immune System

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Immunity is a crucial biological concept about our body's inherent capacity to prevent infections and diseases. A complex network of cells and tissues collectively known as the immune system facilitates this natural defense mechanism. The immune system plays an integral role in maintaining our health and well-being, shielding us from potential health threats.
The immune responses can be categorized into two types: innate and adaptive. Innate immunity comprises nonspecific defenses we are...
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Functions of the Lymphatic and Immune System01:28

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The lymphatic system plays a crucial role in bolstering our immune system. It consists of a network of lymphoid organs, lymph, and lymphatic vessels that provide structural and functional support in safeguarding the body against pathogens such as viruses and bacteria.
The primary lymphoid organs, including the bone marrow and the thymus, serve as the maturation sites for lymphocytes. Secondary lymphoid organs, like the mucosa-associated lymphoid tissue, activate these lymphocytes and serve as...
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Lung Capacity01:47

Lung Capacity

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The air in the lungs is measured in volumes and capacities. Lung volume measures reflect the amount of air taken in, released, or left over after a lung function, like a single inhalation. Lung capacity measures are sums of two or more lung volume measures.
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Lymphatic Vessels and Lymph Transport01:16

Lymphatic Vessels and Lymph Transport

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Lymphatic vessels, known as lymphatics, are crucial in transporting lymph from peripheral tissues to our venous system. This process begins with lymph entering through tiny capillaries that branch through tissues. These capillaries have unique features such as larger diameters, thinner walls, and a distinctive one-way valve system formed by overlapping endothelial cells.
This one-way system allows fluids, solutes, and even pathogens to enter but prevents their return to the intercellular...
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Pleura of the Lungs01:13

Pleura of the Lungs

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The lungs are nestled in a cavity, shielded by the pleura. The pleura, a form of serous membrane, wraps around each lung. This membrane arrangement consists of two layers: the visceral and parietal pleurae. The visceral pleura lines the surface of the lungIn contrast, the parietal pleura is the outer layer and contacts to the thoracic wall, the mediastinum, and the diaphragm. The hilum is the point of connection between the visceral and parietal layers. The space between the parietal and...
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Related Experiment Video

Updated: Feb 5, 2026

Non-invasive Optical Imaging of the Lymphatic Vasculature of a Mouse
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Non-invasive Optical Imaging of the Lymphatic Vasculature of a Mouse

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Imaging Lymphatics in Mouse Lungs.

Peter Baluk1, Donald M McDonald2

  • 1Department of Anatomy, Helen Diller Family Comprehensive Cancer Center, Cardiovascular Research Institute, University of California, San Francisco, CA, USA. peter.baluk@ucsf.edu.

Methods in Molecular Biology (Clifton, N.J.)
|September 23, 2018
PubMed
Summary
This summary is machine-generated.

Researchers developed new methods to study lymphatic vessels in mouse lungs and airways. This technique allows for better visualization and understanding of lymphatic function in respiratory diseases.

Keywords:
Confocal microscopyEndothelial cellsFluorescence microscopyImmunohistochemistryLung diseaseLymphatic vesselsMouse modelsRespiratory tract

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Area of Science:

  • Pulmonary research
  • Lymphatic biology
  • Microscopy techniques

Background:

  • Lymphatic malformations and disturbed lymphatic function in the respiratory tract pose diagnostic and therapeutic challenges.
  • Despite advances in understanding lymphatics, lung lymphatics remain understudied due to anatomical complexity.
  • Existing methods are insufficient for comprehensive examination of lung lymphatics.

Purpose of the Study:

  • To develop and present practical methods for visualizing lymphatics in mouse airways and lungs.
  • To enable detailed study of lymphatic development, growth, and function in the respiratory system.
  • To facilitate research on lymphatic disorders in lung diseases.

Main Methods:

  • Immunohistochemical staining of lymphatics in whole-mount mouse tracheas and 200-μm lung sections.
  • Development of mouse models with lung lymphatic proliferation.
  • Application of blocking antibodies to inhibit lymphatic growth.
  • Vascular perfusion fixation of mouse lungs for enhanced preservation.
  • Fluorescence and confocal microscopy for visualization and analysis of lymphatic endothelial cells.

Main Results:

  • Established reliable immunohistochemical methods for examining mouse lung and airway lymphatics.
  • Demonstrated visualization of lymphatics in both normal and disease models.
  • Successfully applied techniques to study lymphatic endothelial cells and associated cells within the lung microenvironment.

Conclusions:

  • The developed methods provide a practical and effective approach to study lung lymphatics.
  • These techniques will significantly advance our understanding of lymphatic roles in respiratory health and disease.
  • The study opens new avenues for investigating lymphatic disorders in the lungs, comparable to other organs.