Final answer:
Tendons are the accessory structures in muscle, connecting muscle to bone and facilitating the transfer of force for movement. Endomysium, perimysium, and epimysium provide structure and support to the muscle but do not act as accessory structures.
Step-by-step explanation:
The component of muscle that acts as the accessory structures are the tendons. Tendons are the connective tissue that attaches muscle to bone, allowing for the transfer of force and movement. In the structure of a skeletal muscle, there are multiple levels of organization with connective tissue membranes at each level. Muscle cells are surrounded by the endomysium, muscle fascicles are surrounded by the perimysium, and the entire muscle is encased in the epimysium. All of these connective tissues come together to form the tendon. While the endomysium, perimysium, and epimysium provide structure and support to the muscle itself, only the tendons serve as the accessory structures that connect the muscle to the bones.