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

正常情，脏和肾脏会合成一种叫做促小板生成素的激素，可以与细胞受体结合。

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

开始于能干细胞，它可以分化成不同种类的细胞，未来不可限量！

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

铁通过心管系统输送到身体的织。

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

其他干细胞是能的并且分化成种细胞类型（如干细胞）。

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

相反，据报道原始干细胞会产生肌肉，脏，肠道，肺上皮和神经细胞。

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.

大部分骨髓由细胞形成；细胞是可以分化为其他类型细胞的原始细胞。