#spleen__lien  a large dark-red oval organ on the left side of the body between the stomach and the diaphragm; produces cells involved in immune responses
  supertype:  #lymphatic_tissue__lymphatictissue__lymphoidtissue  tissue making up the lymphatic system
  part of:  #lymphatic_system
  part:  #lienal_artery__splenic_artery__splenicartery__arteria_lienalis  an artery that originates from the celiac trunk and supplies blood to the spleen
  part:  #splenic_vein__splenicvein__vena_lienalis  a vein formed by several small veins on the surface of the spleen; joins the superior mesenteric to form the portal vein

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