"肾藏精，精生髓"是中医藏象理论的重要内容之一，近代学者提出的肾-髓-脑，肾-髓-骨等生物轴均是以"肾髓系统"为核心，并在此基础上衍生的，在中医整体观念的指导下，构建中医"肾髓系统"有利于不断完善和充实"肾髓相关"理论，更好地把握和运用"肾髓相关"理论解决重大疾病的临证问题。而历代医家并没有对"肾髓系统"做出明确的界定，没有形成一个完整的理论体系， "肾髓系统"中的"髓"包括脑髓、脊髓、骨髓，髓可化生血液，其与骨髓共同滋养骨骼，而骨髓与脑髓、脊髓相互贯通，均与血有关，故"髓化血"这一功能特点在"肾髓系统"中占据着重要地位。本文从"肾髓系统"的结构和功能方面初步阐释和构建中医"肾髓系统"，以期丰富"肾髓系统"相关理论内涵。

The"kidney stores essence, essence generates marrow"is one of the important contents in zang-xiang theory of traditional Chinese medicine (TCM). The kidney-marrow-brain, kidney-marrow-bone and other biological axis put forward by modern scholars took"kidney-marrow system"as their cores. Derived from this basis as well as under the guidance of TCM holism concept, the construction of TCM"kidney-marrow system"has been continuously improved; and the"kidney- marrow correlation"theory has been enriched. To better grasp and apply the"kidney- marrow correlation"theory can solve clinical problems of major diseases. However, doctors in past dynasties did not clearly define"kidney-marrow system."It has not formed a complete theoretical system."Marrow"in the"kidney-marrow system"contained brain, spinal cord and bone marrow. Marrow can generate blood, which nourishes bone together with the bone marrow. The bone marrow connects with the brain and spinal cord, which are all related to blood. Hence, the function of"marrow generates blood"occupied an important position in the"kidney-marrow system."In this paper, the structure and function of the"kidney-marrow system"were preliminarily explained and constructed; and the"kidney-marrow system"related theories were further enriched.

国家重点基础研究发展计划"973计划"：基于"肾藏精"的脏象理论基础研究（2010CB530400），负责人：王拥军；从障碍性贫血探讨"肾生髓"理论的研究（2010CB530406），负责人：吴志奎。