Can someone answer these for me please 1. The sarcomere extends from one to the next.
2. Theappears darker because the thick myosin filaments run its entire length.
3. Theappears lighter because no thick filaments are present.
4. The lighter stripe in the middle of the A band is called the. It is visible only in a relaxed muscle fiber.
5. Theis in the center of the sarcomere and serves as an attachment site for the thick filaments