Endosteum

The endosteum (plural 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.[1][2]

Endosteum
Endosteum covers the inside of bones, and surrounds the medullary cavity.
Identifiers
TAA02.0.00.038
THH2.00.03.7.00022
FMA32692
Anatomical terminology

This endosteal surface is usually resorbed during long periods of malnutrition, resulting in less cortical thickness.

The outer surface of a bone is lined by a thin layer of connective tissue that is very similar in morphology and function to endosteum. It is called the periosteum, or the periosteal surface. During bone growth, the width of the bone increases as osteoblasts lay new bone tissue at the periosteum. To prevent the bone from becoming unnecessarily thick, osteoclasts resorb the bone from the endosteal side.

Additional images
  • Long bone
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gollark: I am talking meta-level here; I'm not saying "culling is unhelpful" but "it doesn't actually help anything to try and shove things into the culling box".
gollark: It might not be *technically wrong* by a strict definition to say that trying to improve health standards and whatever to reduce population growth is culling, but it's not... helpful? As in, it doesn't really matter whether the relevant actions fit into [bad and emotionally charged category], but whether they're actually bad.
gollark: "Culling" is generally meant to mean something more like actively going out and killing people.
gollark: It probably comes out net-positive, if they vaccinated a lot of people and didn't have too many issues.

References
  1. Netter, Frank H. (1987). Musculoskeletal system: anatomy, physiology, and metabolic disorders. Summit, New Jersey: Ciba-Geigy Corporation ISBN 0-914168-88-6, p.171
  2. "Definition of ENDOSTEUM". www.merriam-webster.com.


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