What Roles Do the Spleen & Marrow Play?
ser humano image by caironbohemio from Fotolia.com jQuery(document).ready(function(){ jQuery(‘#jsArticleStep1 span.image a:first’).attr(‘href’,’http://i.ehow.com/images/a06/14/db/roles-do-spleen-marrow-play_-1.1-800X800.jpg’); }); Marrow and spleen play important roles in the body. The spleen and marrow are lymphoid organs that play important roles in the body’s immune and lymphatic systems. The marrow is the site of hematopoiesis, or the formation of blood cells — both white and red. The spleen is primarily responsible for the breakdown of old blood cells and platelets. It also serves as a surveillance site for cells of the immune system. Marrow Marrow can be classified as either yellow or red. Yellow marrow is fat and is found in the shaft, or diaphysis, of adult long bones such as the femur. Red marrow is the only marrow capable of forming blood cells and is found in several places. It can be found in the epiphyses, or bone ends, of the long bones and in the spongy center of flat b