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Related Concept Videos

Fluid Connective Tissues: Blood and Lymph01:20

Fluid Connective Tissues: Blood and Lymph

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Blood and lymph are fluid connective tissues. They contain cells, also known as formed elements, circulating in a liquid extracellular matrix, the plasma. The formed elements are derived from hematopoietic stem cells in the bone marrow. Blood and lymph connect all vital parts and carry nutrients, oxygen, and other essential molecules like antibodies.
Blood
The blood flows through blood vessels— arteries, capillaries, and veins. Blood plasma is primarily made of proteins, solutes, and...
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Lymphatic Vessels and Lymph Transport01:16

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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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Introduction to Lymphatic and Immune System01:23

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 born...
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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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Lymphoid Cells and Tissues01:18

Lymphoid Cells and Tissues

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Lymphoid cells and tissues are integral to the immune system, which is crucial in maintaining our body's defense against harmful pathogens. They form the building blocks of lymphoid organs, which include the spleen, thymus, and lymph nodes.
Lymphoid cells consist of various types of immune system cells. These include B and T lymphocytes, which are responsible for producing antibodies and killing infected cells, respectively. Dendritic cells act as messengers between the innate and adaptive...
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Functions of the Lymphatic and Immune System01:28

Functions of the Lymphatic and Immune System

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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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From a 2DE-Gel Spot to Protein Function: Lesson Learned From HS1 in Chronic Lymphocytic Leukemia
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From a 2DE-Gel Spot to Protein Function: Lesson Learned From HS1 in Chronic Lymphocytic Leukemia

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Lymph formation, composition and circulation: a proteomics perspective.

Kirk C Hansen1, Angelo D'Alessandro1, Cristina C Clement2

  • 1Department of Biochemistry and Molecular Genetics, University of Colorado Denver, Aurora, CO 80045, USA.

International Immunology
|March 20, 2015
PubMed
Summary
This summary is machine-generated.

Recent advances reveal the lymphatic system's crucial role in health and disease. This review details lymph formation, circulation, and its proteomic makeup, highlighting the lymphatic vascular tree's organization and function.

Keywords:
antigen processing and presentationinflammationpeptidomictissue proteomic

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Area of Science:

  • Physiology
  • Lymphatic System Biology
  • Proteomics

Background:

  • The lymphatic system's role in fluid balance and immunity is increasingly recognized.
  • Understanding lymph formation and circulation is key to comprehending physiological and pathological processes.

Purpose of the Study:

  • To review current knowledge on lymphatic vascular organization, lymph formation, circulation, and proteomic composition.
  • To synthesize insights into the lymphatic system's function in both normal and disease states.

Main Methods:

  • Literature review of recent advancements in lymphatic system research.
  • Analysis of studies on lymph fluid dynamics and endothelial cell glycocalyx function.
  • Examination of proteomic data from lymph in various conditions.

Main Results:

  • Lymph formation depends on capillary pressure gradients and the endothelial glycocalyx acting as a molecular sieve.
  • Lymph fluid propulsion relies on lymphangion pumping and unidirectional valves.
  • Lymph proteomic composition reflects plasma ultrafiltration and organ-specific metabolic activities.

Conclusions:

  • New insights underscore the lymphatic system's vital importance in human physiology and pathology.
  • The lymphatic vascular tree's organization and lymph composition are critical determinants of health.
  • Further research into the lymphatic system promises new avenues for understanding and treating diseases.