The map includes 83 â or nearly 4 percent â of the 2,106 mosques in the United States as of 2010. Mosques from Clarion Projectâs list were excluded if TheDCNF could not verify their addresses. These include Islamist communes like Islamberg in New York. Several mosques on the Clarion Projectâs list stand out. Dar al-Hijrah, located just outside Washington in Falls Chruch, Virginia, for example, was the place of worship for two of the 9/11 hijakers.
Platelets are derived from bone marrow cells called megakaryocytes. Megakaryocytes are huge cells that break into fragments to form platelets. These cell fragments have no nucleus but do contain structures called granules.
BONE MARROW: All the cells of the immune system are initially derived from the bone marrow through a process called hematopoiesis. During foetal development hematopoiesis occurs initially in yolk sac and para-aortic mesenchyme and later in the liver and spleen.This function is taken over gradually by the bone marrow.ymphoreticular cells include reticuloendothelial cells and lymphoid cells. Reticuloendothelial system: The reticuloendothelial system mainly comprise of phagocytic cells whose function is to engulf microbes, immune complex from blood and tissues and participate in inflammation.