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小板生成素激素，可以与胞受体结合。

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

开始于能干胞，它可以分化成不同种胞，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组织。

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

其他干胞是能并且分化成种胞型（如干胞）。

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

相反，据报道原始干胞会产生肌肉，肝脏，肠道，肺上皮和神经胞。

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.

大部分骨髓由胞形成；胞是可以分化为其他型胞原始胞。