Muscle Physiology Quiz

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Questions and Answers

What does muscle tone refer to?

  • The slight tension when some fibers are contracted. (correct)
  • The constant contraction of all muscle fibers.
  • The relaxation of muscles during rest periods.
  • The ability of muscles to regenerate after injury.

Which of the following muscles is primarily involved in shoulder abduction?

  • Pectoralis major
  • Deltoid (correct)
  • Trapezius
  • Sartorius

What is a potential consequence of not using a muscle frequently?

  • Muscle hypertrophy
  • Muscle tone enhancement
  • Muscle endurance increase
  • Muscle atrophy (correct)

How can one maintain a healthy muscular system?

<p>By participating in a variety of exercises regularly. (B)</p> Signup and view all the answers

What effect does strength training have on muscles?

<p>It leads to hypertrophy of individual muscle fibers. (C)</p> Signup and view all the answers

What is the primary reason for muscle tone in skeletal muscles?

<p>Muscle fibers are continuously contracting. (B)</p> Signup and view all the answers

What happens to muscles that are not used or are injured?

<p>They may weaken and shrink. (A)</p> Signup and view all the answers

Which type of exercise primarily promotes muscular endurance?

<p>Regular cardiovascular activities. (A)</p> Signup and view all the answers

Which of the following factors is essential for the maintenance of a healthy muscular system?

<p>Regular varied exercise. (D)</p> Signup and view all the answers

What is the result of strength training on muscle fibers?

<p>Muscle fibers grow and increase in strength. (A)</p> Signup and view all the answers

Flashcards

Muscle Tone

Slight tension in a muscle due to constant, partial contractions of some muscle fibers.

Atrophy

Muscle weakening and shrinkage due to injury or disuse.

Muscle Endurance

How long a muscle can contract without getting tired.

Exercise for healthy muscles

Regular exercise helps keep muscles healthy and strong.

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Warm-up/Cool-down

Important to prevent injuries when exercising. Warm-up prepares muscles for activity, cool-down helps them recover.

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What happens when you don't use your muscles?

Muscle fibers weaken and the muscle shrinks, called atrophy.

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What is muscle tone?

The slight tension in a muscle, even when relaxed, due to some muscle fibers always contracting.

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What does exercise do for your muscles?

Different types of exercise can increase muscle strength and endurance.

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What's a good way to prevent injuries?

Always warm up before exercise and cool down afterwards.

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Frontalis

The muscle that allows you to raise your eyebrows.

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Study Notes

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