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The Z-line anchors actin filaments and marks the boundary of a sarcomere, the functional unit of muscle contraction.
Ref: NCERT Class 11 Biology Chapter 17: Locomotion and Movement Muscle - Types and Structure - Myofibril Sarcomere Myofilament
Myosin forms thick filaments and plays a crucial role in muscle contraction.
Ref: NCERT Class 11 Biology Chapter 17: Locomotion and Movement Muscle - Types and Structure - Myofibril Sarcomere Myofilament
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