Myeloid cells include monocytes, macrophages, neutrophils, basophils, eosinophils, erythrocytes, and megakaryocytes to platelets. The chondrostean kidney is an important hemopoietic organ; where erythrocytes, granulocytes, lymphocytes and macrophages develop. It is absent from erythrocytes, platelets, and neutrophils. Here all erythrocytes, platelets, and most leukocytes form in adults. Anemia is a condition characterized by inadequate red blood cells (erythrocytes) or hemoglobin. Exosomes from red blood cells contain the transferrin receptor which is absent in mature erythrocytes. Iron export occurs in a variety of cell types, including neurons, erythrocytes, macrophages and enterocytes. Natural antibodies recognize these clusters on senescent erythrocytes. A solanine alkaloid isolated from the stool was hemolytic to human erythrocytes. This shortage of erythrocytes results in hemolytic anemia. The epiphysis is filled with red bone marrow, which produces erythrocytes (red blood cells). Hemolysins target erythrocytes, a.k.a. red blood cells. The test relies on the agglutination of horse erythrocytes by heterophile antibodies in patient serum. The pathway is especially important in red blood cells (erythrocytes). ConA strongly agglutinates erythrocytes irrespective of blood-group, and various cancerous cells.