A layer of cells lining the inner surface of bone in the central medullary cavity. SYN: medullary membrane, perimyelis. [endo- + G. osteon, bone]
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end·os·te·um en-'däs-tē-əm n, pl -tea -tē-ə the layer of vascular connective tissue lining the medullary cavities of bone
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n.
the membrane that lines the marrow cavity of a bone.
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en·dos·te·um (en-dosґte-əm) [endo- + osteon] [TA] the tissue lining the medullary cavity of a bone.Medical dictionary. 2011.