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.
Lymph enters a lymph node through , filters through the ________, and leaves through ________. The tonsils are the ones that are located near the opening of the oral cavity into the pharynx. The spleen is a lymph organ that filters blood and also acts as a reservoir for . The thymus is a soft organ with lobes that is located anterior to the ascending aorta and posterior to the sternum. The thymus also produces a hormone, , that stimulates the maturation of lymphocytes in other lymphatic organs.