cold war in British English. See all translations. uk â /ËkÉÊld ËwÉËr/ us â /ËkoÊld ËwÉËr/. âº a state of extreme unfriendliness existing between countries, especially countries with opposing political systems, that expresses itself not through fighting but through political pressure and threats.
The spleen is the largest organ of the lymphatic system. Its primary function is to filter blood of damaged cells, cellular debris, and pathogens. Like the thymus, the spleen houses and aids in the maturation of lymphocytes. Lymphocytes destroy pathogens and dead cells in the blood.
1 The spleen is the largest organ of the lymphatic system. 2  Its primary function is to filter blood of damaged cells, cellular debris, and pathogens. 3  Like the thymus, the spleen houses and aids in the maturation of lymphocytes. 4  Lymphocytes destroy pathogens and dead cells in the blood. Thymus. 2  The thymus gland is the main organ of the lymphatic system. 3  Its primary function is to promote the development of specific cells of the immune system called T-lymphocytes. 4  Once mature, these cells leave the thymus and are transported via blood vessels to the lymph nodes and spleen.