From which type of pluripotent stem cells do most of the formed elements of blood arise? B. Which cells do not arise from these types of stem cells, and where do they arise from? For each of the following processes of blood cell formation, identify the formed elements that are and the major factors that regulate the onset of this process: C. Erythropoiesis D. Thrombopoiesis E. Leukopoiesis F. Lymphopoiesis
