Leukopoiesis is the formation of white blood cells. In adults, leukopoiesis occurs in the red bone marrow
The process of WBC production is called leukopoiesis
Stem cells responsible for producing lymphopoiesis, also originate in the red bone marrow
Many of the lymphold stem cells that produce lymphocytes migrate from the red bone marrow to peripheral lymphatic tissues, including the thymus, spleen, and lymph nodes
Hormones called, colony-stimulating factors (CSFs), are involved in regulating other WBC populations