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...
By the end of 2012, there were approximately 11.2 million undocumented immigrants in the United States, and that number remained constant into 2013 with 11.3 million undocumented immigrants. People from Mexico account for a large part of the undocumented population living in the United States, but their share has diminished in recent years. In 2012, 6 million peopleâor 52 percent of the undocumented populationâwere from Mexico, down from the peak of 6.9 millionâor 57 percentâin 2007.