endosteum

[en-dos-tee-uhm]
noun, plural endostea [en-dos-tee-uh] . Anatomy.
the membrane lining the medullary cavity of a bone.

Origin:
1880–85; end- + Neo-Latin osteum < Greek ostéon bone

endosteal, adjective
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World English Dictionary
endosteum (ɛnˈdɒstɪəm)
 
n , pl -tea
a highly vascular membrane lining the marrow cavity of long bones, such as the femur and humerus
 
[C19: New Latin, from endo- + Greek osteon bone]
 
en'dosteal
 
adj

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American Heritage
Medical Dictionary

endosteum en·dos·te·um (ěn-dŏs'tē-əm)
n. pl. en·dos·te·a (-tē-ə)
The thin layer of cells lining the medullary cavity of a bone. Also called medullary membrane.


en·dos'te·al adj.
The American Heritage® Stedman's Medical Dictionary
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Example sentences
At the same time, osteoclasts in the endosteum break down bone on the internal bone surface, around the medullary cavity.
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