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.
The rarest is Tyler the Great Warrior. There is only one in print and that was given to a kid named Tyler Gressle. It was made for Tyler for part of the Make-a-Wish foundation â¦ . The rarest Yu-Gi-Oh card is called Tyler the Great Warrior. This card was made for a little boy, by the Make a Wish Foundation. There is only one in existence and Tyler Gressle has it. The rarest and most expensive card in the world is Tyler the Great Warrior. It was made for a boy named Tyler Gressle via the Make-a-Wish Foundation.