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.he lymphatic system plays a vital role in the proper functioning of the body. One of the major roles of this organ system is to drain excess fluid surrounding tissues and organs and return it to the blood. Returning lymph to the blood helps to maintain normal blood volume and pressure.
More Americans believe aliens have visited Earth than believe that Jesus is the Son of God. According to a National Geographic survey, 77 percent of all Americans believe there are signs that aliens have visited Earth, and according to a recent Harris poll only 68 percent of all...
More than a third of Americans believe in aliens (and only 2% would try to attack if they bumped into one) More than a third of people in the U.S. believe aliens exist - and more than 10 per cent of the population believes they have seen an alien ship in the sky. The study from National Geographic Channel found that 80 million Americans - or 36 per cent - are certain alien spaceship exist, and of those who believe, 79 per cent are convinced the White House has kept information about other lifeforms a secret.