Human Anatomy: Bones, Muscles, and Tissues
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Questions and Answers

What is the function of smooth muscles in the respiratory system?

  • Peristalsis
  • Composes the heart
  • Maintain pressure in arteries
  • Change thoracic volume (correct)

    • Which body system is responsible for maintaining pressure in arteries?

  • Muscular system (correct)
  • Digestive system
  • Nervous system
  • Skeletal system

    • What is the function of skeletal muscles?

  • Composes the heart
  • Perform peristalsis
  • Change thoracic volume
  • Body movement (correct)

    • Where can cardiac muscles primarily be found in the body?

    <p>In the heart</p> Signup and view all the answers

    What is the function of tendons in the body?

    <p>Connect muscle to bone</p> Signup and view all the answers

    What is the role of calcium in muscle contraction?

    <p>Opens attachment sites of actin for myosin binding</p> Signup and view all the answers

    Which component defines the boundary between sarcomeres?

    <p>Z bands</p> Signup and view all the answers

    What causes muscle fatigue?

    <p>Buildup of lactic acid lowering cell pH</p> Signup and view all the answers

    How do steroids impact muscle cells?

    <p>Increase protein filament synthesis for muscle strength</p> Signup and view all the answers

    What is the alternative energy source for muscle contraction other than ATP?

    <p>Creatine phosphate</p> Signup and view all the answers

    What characterizes muscular dystrophy?

    <p>Hereditary progressive wasting of muscles</p> Signup and view all the answers

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