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种叫做促血小板生成素的激素，可血受体结合。

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

血开始于能血干，它可分化成不同种类的，来不可限量！

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体的血组织。

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

其他干是能的并且分化成种类型（如血干）。

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

相反，据报道原始血干会产生肌肉，肝脏，肠道，肺上皮和神经。

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.

大部分骨髓由血形成；血是可分化为其他类型的原始。