Use information in last class, along with what you learned in the diagrams above to fill in the blanks below using the terms:


tendons, actin, myosin, dystrophin, skeleton, myofibrils, fascicles


The muscles in the human body that are connected to bones and aid in the movement of the ______________ are called skeletal muscles. These muscles are connected to bones by ________________. Within each of the skeletal muscles are bundles of muscle fibers. These bundles are also called ___________________.

Each skeletal muscle fiber contains many ________________, which are rod-shaped and contains many sarcomeres (the functioning unit of muscle tissue.) Sarcomeres are made up of thin filaments (composed mainly of the protein _____________) and thick filaments (composed mainly of the protein ______________.) The actin of the outermost myofibril is connected to the cell membrane by a protein called ________________.