cross-bridge

cross-bridge

In the sarcomere of a muscle cell, the portion of the myosin filaments that pulls the actin filaments toward the center of a sarcomere during contraction.
References in periodicals archive ?
Chancellor George Osborne made a preelection pledge, saying residents of Warrington Chester would, like people living in Runcorn Widnes, have free cross-bridge travel.
032 in the cross-bridge and the construction of a new bridge connecting roads for the development and preparation of plans required approval of the existing bridge structure and substructures disconnect.