B淋巴细胞的发育分化

B淋巴细胞 * HSC是存在于造血组织中的一群最原始的造血细胞。具有高度自我更新和自我复制的能力。 所有的血细胞都是由骨髓内的多能干细胞发育、分化而来的。 造血干细胞（HSC) Blood Serum or Plasma Leukocytes, Platelets and RBC Serum Proteins Mononuclear Cells Polymorphonuclear leukocytes (or Granulocytes) Immunoglobulins Complement Clotting factors Many others Neutrophils Eosinophils Basophils Lymphocytes (T cells, B cells & NK cells) Monocytes 血液的成分 免疫细胞的产生 platelets megakaryocyte eosinophil neutrophil basophil mast cell common myeloid progenitor monocyte macrophage Natural Killer cell plasma cell B Lymphocyte T Lymphocyte common lymphoid progenitor Pluripotent hematopoietic stem cell * Study Guide Can you describe the major classes of cells involved in immunity? Which cells are considered mononuclear leukocytes? What is the relationship between the monocyte and the macrophage? What is the relationship between the B-cell and the plasma cell? 人类B细胞来自骨髓，并在骨髓中发育成熟 人B细胞占外周血淋巴细胞的10% ~ 20% 在淋巴结中占淋巴细胞的25% 在脾脏中为淋巴细胞的50% 骨髓中淋巴细胞主要为B细胞 胸腺中B淋巴细胞含量