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Cortical bone


noun, plural: cortical bones

A type of osseous tissue consisting of closely packed osteons or haversian systems, and forms the extremely hard exterior of bones.


Because of the closely packed osteons and multiple stacked layers with few gaps on this tissue, the compact bone is extremely hard and dense (compared with the cancellous bone). These features of compact bone are vital to serve its function in providing support to the body and protecting the organs. It also provides levers for movement and store minerals (similar to cancellous bone).

Word origin: cortical: L. cortex bark: cf. F. cortical.; bone: Middle English bon, from Old English bān.

Synonym: compact bone, cortical substance, substantia corticalis.
Compare: cancellous bone.
See also: osseous tissue.

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Avian and ratite medullary bone

Bird medullary bone is described as a secondary bone tissue that provided calcium for producing eggshell, ... or the thin basal layer of medullary bone will eventually completely separated from cortical bone after sometime?

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by munyit
Mon Apr 02, 2012 4:43 am
Forum: Physiology
Topic: Avian and ratite medullary bone
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Views: 2060

Bone remodelling

... Andrew :D Well, maybe this little information could help you a bit :) BONE REMODELLING by Rod Lakes from University of Wisconsin Phenomenology ... 1984. 5. Reilly, D.T. and Burstein, A. H., The mechanical properties of cortical bone, J. Bone Jnt. Surg., 56A, 1001-1022, 1974. 6. Currey, J.D., ...

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by Dr.Stein
Mon Nov 28, 2005 2:09 am
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