Bone marrow is an exception to this rule, however, since even in adults, bone marrow cells continually divide to replace old blood cells.

然而，骨髓是个例外，因为即使在成年人体内，骨髓细胞也在不断分裂，以取代老化的血细胞。

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You may need a bone marrow transplant if your bone marrow is diseased and can't make healthy blood cells.

严重时患者可能需要骨髓移植，否则身体将无法制造健康的血细胞。

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Bone marrow that actively produces blood cells is called red marrow, and bone marrow that no longer produces blood cells is called yellow marrow.

活跃生产血细胞的骨骼叫做红骨髓，不再产生血细胞的骨骼叫做黄骨髓。

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There was enough space in the bone for the healthy marrow to start producing new red blood cells.

VOA: special.2009.12.16

All these cells come from the bone marrow and biologists have traced the formation of these cells in great detail.

所有这些细胞都来自骨髓,而生物学家已经很详细地,研究了这些细胞的形成过程

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You know probably that within your bone marrows there's populations of cells, there are different kinds of cells within the bone marrow.

你也许知道的,在你的骨髓里,有许多种细胞,骨髓中有不同种类的细胞

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Another possibility is a bone marrow transplant - the existing bone marrow cells are destroyed using chemotherapy, then new, healthy ones are transplanted in to take over their job.

BBC: Q&A: Test-tube lifesaver

The researchers also demonstrated that severe injury is not necessary for the formation of mature liver cells from bone marrow cells.

BBC: First steps towards artificial organs

Northwestern University School of Medicine Researchers Christopher Bissonnette and Jack Kessler converted stem cells (general cells in the bone marrow) into brain cells that can be used to replace damaged neurons.

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