Sliding Filament Theory

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    Created by
    Daisy

    Cards (4)

    • How do the sarcomeres contract?

      Myosin and actin filaments slide over one another to make the sarcomeres contract - the myofilaments themselves do not contract
    • What means that the myofibrils and muscle fibres contract?

      The simultaneous contraction of lots of sarcomeres means the myofibrils and muscle fibres contract
    • What happens as the muscle relaxes?

      Sarcomeres return to their original length
    • Contracted sarcomeres- describe?

      • A-bands stay the same length
      • I-band gets shorter
      • H-zones get shorter
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