Periosteum
Encyclopedia : P : PE : PER : Periosteum
The
periosteum is an envelope of fibrous connective tissue that is wrapped around the
bone in all places except at joints (which are protected by
cartilage). As opposed to bone itself, it has
nociceptive nerve endings, making it very sensitive to manipulation. It also provides nourishment in the form of blood supply to the bone. The periosteum is connected to the bone by strong collagenous fibers called Sharpey's fibres, which extend to the outer circumferential and interstitial
lamellae of bone. The periosteum contains a store of osteogenic
osteoblasts, and thus plays a vital part in the healing of
fractures.
The "pericranium" is the periosteum of the skull.
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