Muscular Tissue in the Heart
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Questions and Answers

What is the term for the elongated muscle cell that contains myofibrils and myofilaments?

  • Sarcoplasm
  • Myofiber (correct)
  • Sarcolemma
  • Sarcosome
  • Which organelle in the muscle cell is responsible for storing calcium ions?

  • Myofibrils
  • Mitochondria
  • Sarcosomes
  • Sarcoplasmic Reticulum (correct)
  • Which type of muscle fibers are striated and voluntary, except in the pharynx, upper esophagus, and cremasteric muscle?

  • Skeletal (correct)
  • Cardiac
  • Smooth
  • None of the above
  • What is the term for the cytoplasm in the muscle cell?

    <p>Sarcoplasm</p> Signup and view all the answers

    Which type of muscle fibers are non-striated and involuntary?

    <p>Smooth</p> Signup and view all the answers

    Which organelle in the cardiac muscle cell is responsible for storing calcium ions?

    <p>Sarcoplasmic Reticulum</p> Signup and view all the answers

    What is the term for the muscle cell membrane in the cardiac muscle?

    <p>Sarcolemma</p> Signup and view all the answers

    Which type of muscle fibers have intermediate characteristics between skeletal and smooth muscle fibers?

    <p>Cardiac muscle fibers</p> Signup and view all the answers

    What is the term for the non-striated and involuntary muscle fibers?

    <p>Smooth muscle fibers</p> Signup and view all the answers

    What is the term for the elongated muscle cell that contains myofibrils and myofilaments?

    <p>Myofiber</p> Signup and view all the answers

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