Definition of Periosteum. It is a dense fibrous membrane made up of irregular connective tissue that covers the external surface of the bones. It is completely opposite to endosteum that lines the inner cavity of long bones.t mainly comprises of the following two layers: 1  Outer fibrous layer: It is composed of collagen-producing cells called fibroblasts and contains nerve fibers that cause pain when damaged due to the presence of nociceptive nerve endings.
Dealer Says He Doctored Most Valuable Baseball Card Ever Sold. A rare example of the 1909 Honus Wagner baseball card. In 2007, one of them fetched a whopping $2.8 million. A rare example of the 1909 Honus Wagner baseball card. In 2007, one of them fetched a whopping $2.8 million. A judge has rejected a plea agreement from the former head of a sports memorabilia auction house who admitted to using shill bidders to drive up prices and to altering the most valuable baseball card ever sold.
Powerball is an American lottery run by the Multi-State Lottery Association that is played in 43 states. The game is exceedingly simple, yet highly lucrative. In fact, as of May 2013, the Powerball lottery has held the world record for the highest jackpot (before taxes) awarded to a single person ($590 million). Though any one ticket's probability of winning the jackpot is tremendously low, as the old saying goes, You've got to be in it to win it..