Musculoskeletal Injury Pathoetiology Quiz
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Questions and Answers

What factor drives bone remodeling?

  • High strain
  • Low strain (correct)
  • Vitamin C
  • Vitamin E
  • What plays a potent role in bone growth and remodeling?

  • Fiber
  • Iron
  • Sodium
  • Protein (correct)
  • What condition can lead to 25% less bone mass in athletes?

  • Diabetes
  • Obesity
  • Athlete's Amenorrhea (correct)
  • Osteoporosis
  • What is the main impact of time on bone remodeling?

    <p>Resorption is much faster than Deposition</p> Signup and view all the answers

    Which of the following external factors is important for affecting the structure and quantity of bone?

    <p>Mechanical loads</p> Signup and view all the answers

    What type of bone is built for good energy absorption during impacts?

    <p>Trabecular Bone</p> Signup and view all the answers

    What is the main factor that determines the number of muscle fibers in an individual?

    <p>Myostatin levels at birth</p> Signup and view all the answers

    Which condition is associated with the 'Hercules Gene'?

    <p>Hypertrophic cardiomyopathy</p> Signup and view all the answers

    What is the primary cause of muscle mass reduction with age?

    <p>Decrease in fiber number</p> Signup and view all the answers

    In which age range do weightlifting champions usually experience a strength plateau?

    <p>~50s</p> Signup and view all the answers

    What type of muscle failure occurs when there is an issue at the bone-tendon junction?

    <p>Failure at muscle-tendon junction</p> Signup and view all the answers

    What is the primary reason for active muscle to fail at the z-disc level?

    <p>Same length failure as passive muscle</p> Signup and view all the answers

    How does exercise impact bone density and bone mineral content in growing bone?

    <p>Strenuous exercise can increase bone density by 7% and bone mineral content by 11%.</p> Signup and view all the answers

    What happens to estrogen levels and ovulation in individuals with inhibited hypothalamus function?

    <p>Estrogen levels decrease and ovulation stops.</p> Signup and view all the answers

    Why is optimizing bone mass early in life important?

    <p>Early optimization helps prevent rapid bone loss later in life.</p> Signup and view all the answers

    What impact does long-term moderate/intense training have on bone mineral content?

    <p>Continuous activity retains the benefits of moderate/intense training on bone mineral content.</p> Signup and view all the answers

    Why is vitamin D important for bone health?

    <p>Vitamin D helps store calcium in fat, impacting bone mass.</p> Signup and view all the answers

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