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Questions and Answers
Which type of muscle fibers are fatigue-resistant and suitable for endurance activities?
Which type of muscle fibers are fatigue-resistant and suitable for endurance activities?
- Fast-twitch (Type II) fibers
- Endurance-twitch fibers
- Medium-twitch fibers
- Slow-twitch (Type I) fibers (correct)
What type of activities are fast-twitch fibers ideal for?
What type of activities are fast-twitch fibers ideal for?
- Long-distance running
- Sprinting (correct)
- Swimming slowly
- Cycling at a steady pace
What is the role of a motor unit in muscle contraction?
What is the role of a motor unit in muscle contraction?
- Causing muscle fatigue
- Generating muscle force (correct)
- Producing energy for muscles
- Regulating body temperature
According to the size principle, which motor units are recruited first?
According to the size principle, which motor units are recruited first?
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How do motor neurons signal the amount of force required from muscles?
How do motor neurons signal the amount of force required from muscles?
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What is the primary mechanism by which muscle force output increases as strength demands rise?
What is the primary mechanism by which muscle force output increases as strength demands rise?
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How does spatial recruitment affect force production in skeletal muscles?
How does spatial recruitment affect force production in skeletal muscles?
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What role do antagonist muscles play in movement?
What role do antagonist muscles play in movement?
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How do muscles adapt their contraction speed and force output based on external forces?
How do muscles adapt their contraction speed and force output based on external forces?
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What is the primary function of bones in the musculo-skeletal system lever system?
What is the primary function of bones in the musculo-skeletal system lever system?
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