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Perforating canals


These are the oblique to transverse canals that connect central osteon canals with one another, the medullary cavity, and the bone surface. They are typically a little larger than the central osteon canals and can be readily distinguished by their oblique to transverse nature and lack of interstitial lamellar rings around their circumference. They distribute arterioles and venules from the endosteum and periosteum to the capillaries of the central osteon canal.


Perforating arises from the Latin forare meaning to bore and per meaning through. Canal is from the Latin canalis meaning a little duct, tube, or passage. This is then a passage that bore through bone.


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