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New Function of Lymph Glands Discovered
30.12.2010 18:50
New Function of Lymph Glands Discovered

Our organisms have a blood system and a lymphatic system, in which liquid moves thanks to contractions of lymph vessels. Russian scientists believe that lymph nodes may act like additional pumps for this system.
      
      Main function of lymph nodes is immunity they act like a biological filter. Leucocytes recognize alien antibodies, carried by lymph, which comes from tissues and organs, in lymph nodes. These nodes dont seem to simplify liquids movements, since they are made of tissue, pierced by capillaries, and covered with a capsule, made of connective tissue.
      
      Researchers decided to study mechanical properties of this capsule during both relaxation and contraction. The experiment showed that lymph node capsule stretched well and didnt prevent lymph from flowing through it. Its muscles are able to create pressure and provide effective transport of liquid through a node. Results allowed researchers to conclude that lymph nodes function as active pumps and are important for lymph transport.
      
      Source: Science News
Author: Anna Kizilova


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