Muscle Tissue Key Objectives Quiz
30 Questions
2 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Which type of muscle appears striated and has long, cylindrical, multinucleated fibers?

  • Cardiac muscle
  • Smooth muscle
  • Skeletal muscle (correct)
  • None of the above

    • What is the microscopic appearance of smooth muscle?

  • Striated
  • Spindle-shaped (correct)
  • Branched
  • None of the above

    • Which muscle type has cells connected by intercalated discs?

  • Skeletal muscle
  • Smooth muscle
  • Cardiac muscle (correct)
  • None of the above

    • What are the key characteristics of skeletal muscle?

    <p>Voluntary control, striated appearance, multinucleated cells</p> Signup and view all the answers

    What are the components of sarcomeres in skeletal and cardiac muscle?

    <p>Z-lines, A-bands, I-bands, H-zone, and M-lines</p> Signup and view all the answers

    What initiates the contraction in skeletal muscle?

    <p>A neural signal, calcium release from the sarcoplasmic reticulum, binding of calcium to troponin, cross-bridge formation between actin and myosin, and sliding of filaments</p> Signup and view all the answers

    What initiates the contraction in smooth muscle?

    <p>Calcium entry through channels, calcium binding to calmodulin, activation of myosin light chain kinase, and phosphorylation of myosin</p> Signup and view all the answers

    What disrupts the neuromuscular junction?

    <p>Neuromuscular diseases, nerve damage, or certain toxins like botulinum toxin</p> Signup and view all the answers

    What is the microscopic appearance of cardiac muscle?

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

    What are the key characteristics of smooth muscle?

    <p>Involuntary control, non-striated appearance, spindle-shaped cells</p> Signup and view all the answers

    Which muscle type has shorter and branched cells with single or binucleated cells?

    <p>Cardiac Muscle</p> Signup and view all the answers

    What is the microscopic appearance of smooth muscle?

    <p>Non-striated</p> Signup and view all the answers

    Which muscle type has intercalated discs?

    <p>Cardiac Muscle</p> Signup and view all the answers

    What initiates the contraction in cardiac muscle?

    <p>Pacemaker signal</p> Signup and view all the answers

    Which muscle type has spindle-shaped cells?

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

    What are the components of sarcomeres in smooth muscle?

    <p>Dense bodies</p> Signup and view all the answers

    What initiates the contraction in skeletal muscle?

    <p>A neural signal</p> Signup and view all the answers

    Which muscle type appears striated and has long, cylindrical, multinucleated fibers?

    <p>Skeletal Muscle</p> Signup and view all the answers

    What is the microscopic appearance of cardiac muscle?

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

    What disrupts the neuromuscular junction?

    <p>All of the above</p> Signup and view all the answers

    Which muscle type has cells connected by intercalated discs?

    <p>Cardiac Muscle</p> Signup and view all the answers

    What is the microscopic appearance of smooth muscle?

    <p>Non-striated</p> Signup and view all the answers

    What disrupts the neuromuscular junction?

    <p>All of the above</p> Signup and view all the answers

    What are the key characteristics of smooth muscle?

    <p>Involuntary control, non-striated appearance, spindle-shaped cells</p> Signup and view all the answers

    Which muscle type appears striated and has long, cylindrical, multinucleated fibers?

    <p>Skeletal Muscle</p> Signup and view all the answers

    What are the components of sarcomeres in smooth muscle?

    <p>Dense bodies</p> Signup and view all the answers

    What initiates the contraction in skeletal muscle?

    <p>A neural signal</p> Signup and view all the answers

    Which muscle type has shorter and branched cells with single or binucleated cells?

    <p>Cardiac Muscle</p> Signup and view all the answers

    What is the microscopic appearance of smooth muscle?

    <p>Non-striated</p> Signup and view all the answers

    What are the components of sarcomeres in skeletal and cardiac muscle?

    <p>Z-lines, A-bands, I-bands, H-zone, and M-lines</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser