Normally, the liver and kidneys produce a tiny hormone called thrombopoietin which binds to hematopoietic cell receptors.

正常情况下，肝脏和肾脏会合成一叫做促血小板生成素的激素，可以与造血细结合。

Hematopoiesis starts with a multipotent hematopoietic stem cell which can develop into various cell types - it's future is undecided.

造血开始于能造血干细，它可以分化成类的细，未来可限量！

Iron is carried through the cardiovascular system to the body's hematopoietic tissue.

铁通过心血管系统输送到身的造血组织。

Other stem cells are multipotent and differentiate into a variety of cell types (ie, hematopoietic stem cells).

其他干细是能的并且分化成细类型（如造血干细）。

Conversely, primitive hematopoietic stem cells were reported to give rise to muscle, liver, intestinal, pulmonary epithelial, and neuronal cells.

相反，据报道原始造血干细会产生肌肉，肝脏，肠道，肺上皮和神经细。

Now, the vast majority of bone marrow is made of hematopoietic cells which are the early progenitor cells that can differentiate into other cell types.

大部分骨髓由造血细形成；造血细是可以分化为其他类型细的原始细。