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.
The spleen is the largest lymphatic organ in the body and is the immunologic filter for the blood. Like the thymus, it has no afferent lymphatic vessels and no lymph sinuses. Splenic vessels enter and leave the spleen at the hilum of the organ and are located in thick trabeculae, which extend inward from the capsule.