In many bone transplants, bone can be taken from other parts of the patient's body.

在许多骨移植手术中，骨头可以取自病人身体的其它部分。

《柯林斯英汉双解大词典》

Bone growth in reptiles is periodic in nature, producing a series of concentric rings in the bone, not unlike the growth rings of a tree.

爬行动物的骨骼生长在本质上是周期性的，在骨头上产生一系列的同心圆，就像树木的年轮一样。

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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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Then,a hard cast may be put around the area of the break to hold the bone in place while it heals.

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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

耶鲁公开课 - 生物医学工程探索课程节选

We'll talk in a minute about stem cells that are involved in generation of blood and they develop and they live in the bone marrow.

我们一会儿要说到,和血细胞再生有关的干细胞,它们发育并储存在骨髓中

耶鲁公开课 - 生物医学工程探索课程节选

First of all, at 16 years old you are in the midst of an important period for growth and bone development, and losing weight too quickly (more than 1-2 pounds per week), could result in bone loss which could affect bone density in adulthood.

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An infection in the bone could lead to potential issues with bone healing, along with possible spread of infection throughout the body as well.

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This, in turn, limits a person's peak bone mass in adulthood, making osteoporosis a greater threat when bone density starts to decline late in life.

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