A bursa is a closed, fluid-filled sac that functions as a cushion and provide a gliding surface to reduce friction between tissues of the body around joints. Essentially, a bursa provides a slick surface so that tendons and ligaments can slide across a bony prominence so it doesn't catch or rub against the bone.
Mark Tatum's appointment as NBA Deputy Commissioner is recognition of the confidence our owners and teams have in his leadership ability and track record of success, said Silver.
Deputy Director of the Central Intelligence Agency. The Deputy Director of the Central Intelligence Agency is David S. Cohen. The DD/CIA assists the Director in his duties as head of the CIA and exercises the powers of the Director when the Directorâs position is vacant or in the Directorâs absence or disability.