Endosteum

Rarity: Common

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At a glance

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Notion

Domain

Science and technology

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What Wikipedia says

The endosteum (pl.: endostea) is a thin vascular membrane of connective tissue that lines the inner surface of the bony tissue that forms the medullary cavity of long bones.

Excerpt from the Wikipedia article “Endosteum”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: OpenStax College, CC BY 3.0, via Wikimedia Commons.