n.血细胞生成作用；造血

Hemopoiesis is the process by which blood cells are produced from hematopoietic stem cells in the bone marrow.
造血是骨髓中造血干细胞生成血细胞的过程。
During embryonic development, hemopoiesis initially occurs in the yolk sac before being taken over by the liver and then the bone marrow.
在胚胎发育期间，最初在卵黄囊发生造血作用，然后由肝脏接管，最后由骨髓负责。
Hemopoiesis is a complex process involving differentiation and proliferation of various types of blood cells.
造血是一个涉及不同类型血细胞分化和增殖的复杂过程。
Chemotherapy drugs can often suppress hemopoiesis, leading to a decrease in the production of white blood cells, red blood cells, and platelets.
化疗药物常常会抑制造血作用，导致白细胞、红细胞和血小板生成减少。
The spleen also plays a role in hemopoiesis under certain pathological conditions, such as severe anemia or bone marrow suppression.
在某些病理性条件下，如严重贫血或骨髓抑制时，脾脏也会参与造血过程。
Hemopoietic stem cell transplantation is used to treat patients with diseases affecting hemopoiesis like leukemia or multiple myeloma.
造血干细胞移植被用于治疗影响造血功能的疾病，如白血病或多发性骨髓瘤。
In response to infection or injury, the body may increase its rate of hemopoiesis to replace damaged or depleted blood cells.
机体对感染或伤害做出反应时，可能会加快造血速度以替换受损或耗尽的血细胞。
The regulation of hemopoiesis involves a balance between positive and negative signals that control the proliferation, differentiation, and survival of hematopoietic cells.
造血调控涉及控制造血细胞增殖、分化及生存的正负信号之间的平衡。
Disorders of hemopoiesis, such as aplastic anemia, result from defects in the stem cells or their microenvironment within the bone marrow.
像再生障碍性贫血这样的造血系统疾病，源于骨髓内干细胞或其微环境的缺陷。
Erythropoietin is a hormone that stimulates the production of red blood cells during the process of hemopoiesis.
红细胞生成素是一种激素，在造血过程中能刺激红细胞的生成。