BIOC33H3 Lecture Notes - Osteoclast, Periosteum
18 Jan 2012
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Document Summary
Osteocyte in the inner side, and outersie is the compact bone. -you see the high virgin canal in the centre of the osteon to allow for the passage of blood vessel. -you also have concentric lamellae, to provide strength. You may also have interstitial lamellae , between two neighbouring osteons in the centre you have spongy bone, and in the periphery, you have compact bone. Under low power observe the general structure of compact bone. The outer, more regular edge is the periosteal border; this is protected by the fibrous connective tissue of periostium (this is not of concern now). The inner more irregular border is closer to the medullary cavity (where the marrow is). Note the arrangement of osteons in the compact outer regions. Each osteon is composed of an inner central canal that usually contains a nerve, artery and vein.
