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Functions of lymphatic system

Updated: Apr 7



The lymphatic system plays several essential roles in maintaining overall health and homeostasis in the body. The main functions include:

1) Fluid balance

  • The lymphatic system helps maintain fluid balance by collecting excess interstitial fluid from tissues and returning it to the bloodstream.

  • This prevents fluid accumulation in tissues, avoiding swelling and related complications.

2) Immune function of lymphatic system

  • As an integral part of the immune system, the lymphatic system transports immune cells like lymphocytes and facilitates their interaction with antigens in lymph nodes and other lymphoid tissues.

  • This supports an effective immune response against pathogens and foreign substances.

3) Waste removal

  • The lymphatic system removes waste products, cellular debris, and foreign particles from tissues.

  • These materials are filtered and eliminated in the lymph nodes, where immune cells break them down and remove them from the body.

4) Fat absorption

  • The lymphatic system aids in absorbing dietary fats and fat-soluble vitamins.

  • Lymphatic vessels in the intestines, known as lacteals, absorb these nutrients and transport them to the bloodstream for distribution to body tissues.

5) Transport of immune cells

  • Lymphatic vessels transport immune cells, such as lymphocytes, throughout the body, enabling them to reach infection or injury sites and perform their functions effectively.



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