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.
<br /> the lymphatic sytem<br /><br /><br />______<br />Although the spleen does indeed play a role in filtering old erythrocytes (sometimes the red pulp of the spleen is called the red blood cell graveyard), it is physiologically classified as part of <b>the lymphatic system</b>, and not part of the cardiovascular system.