Muscle Types and Functions Quiz
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Questions and Answers

Which type of muscle is characterized as non-fatiguing and involuntary?

  • Striated
  • Smooth
  • Cardiac (correct)
  • Skeletal

Which of the following is NOT a major skeletal muscle?

  • Biceps
  • Deltoids
  • Lunges (correct)
  • Pectorals

What is the role of an antagonist muscle during movement?

  • To counteract the agonist (correct)
  • To assist the agonist
  • To prevent muscle fatigue
  • To provide support

Which type of muscle contraction occurs when a muscle lengthens while under tension?

<p>Eccentric (A)</p> Signup and view all the answers

Which muscle fiber type is known for its resistance to fatigue and is primarily used during endurance activities?

<p>Type I (D)</p> Signup and view all the answers

Which type of muscle is consciously controlled and can fatigue during exercise?

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

What is one of the immediate responses of the muscular system to a single exercise session?

<p>Increased blood supply (C)</p> Signup and view all the answers

Where is cardiac muscle primarily found?

<p>Only in the walls of the heart (B)</p> Signup and view all the answers

What is a characteristic of smooth muscle?

<p>Controlled by the nervous system (A)</p> Signup and view all the answers

Which adaptation occurs as a long-term response to regular resistance training?

<p>Hypertrophy (A)</p> Signup and view all the answers

Which of the following is an example of a skeletal muscle?

<p>Biceps (C)</p> Signup and view all the answers

What is a common effect of aging on the muscular system?

<p>Loss of muscle mass (B)</p> Signup and view all the answers

Which type of muscle does not fatigue and is found only in the heart?

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

Which of the following adaptations increases the storage capacity for energy in the muscles?

<p>Increase in storage of glycogen (D)</p> Signup and view all the answers

What physiological change accompanies high-intensity exercise?

<p>Increase in muscle temperature (D)</p> Signup and view all the answers

Flashcards

Synergists

Muscles that work together to perform a movement. They assist the prime mover (agonist) in its action.

Concentric Contraction

The type of muscle contraction that occurs when the muscle shortens and creates movement. Examples include lifting a weight or jumping.

Eccentric Contraction

The type of muscle contraction that occurs when the muscle lengthens under tension. Examples include lowering a weight slowly or walking downstairs.

Smooth Muscles

These muscles are found in the walls of internal organs, blood vessels, and the digestive system. They contract slowly and involuntarily, without conscious control.

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Cardiac Muscle

This type of muscle is found only in the heart, responsible for pumping blood throughout the body. It contracts rhythmically and involuntarily.

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What are skeletal muscles?

These muscles are attached to bones and are responsible for movement. They are consciously controlled.

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What are cardiac muscles?

These muscles are found only in the heart and are responsible for pumping blood throughout the body. They are not consciously controlled.

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What are smooth muscles?

These muscles are found in the walls of internal organs, blood vessels, and the digestive system. They are not consciously controlled.

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What is a concentric contraction?

These muscles shorten to create movement. An example is lifting a weight.

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What is an eccentric contraction?

These muscles lengthen under tension. An example is lowering a weight.

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Hypertrophy

An increase in the size of muscle fibers due to repeated resistance training.

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Cramp

Involuntary, sustained muscle contraction that can cause pain and discomfort. Often caused by dehydration, overuse, or electrolyte imbalances.

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Increased tolerance to lactate

The ability of muscles to adapt to exercise and become more efficient at using oxygen. Occurs with regular exercise.

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Microtears

The breakdown of muscle tissue that occurs during resistance training, leading to muscle growth and adaptation.

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Myoglobin

The oxygen-carrying protein found in muscle cells, which increases with exercise to improve oxygen delivery and muscle function.

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