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Questions and Answers
What type of muscle contraction involves the muscle shortening as it creates tension?
What type of muscle contraction involves the muscle shortening as it creates tension?
- Concentric (correct)
- Type I
- Isometric
- Eccentric
Which type of muscle fiber has a primary energy system of oxidative and is recruited during lower intensity activities lasting 2 minutes or more?
Which type of muscle fiber has a primary energy system of oxidative and is recruited during lower intensity activities lasting 2 minutes or more?
- Type Ila
- Type IIx
- Type llx
- Type I (correct)
In the sliding filament theory, what molecule binds to troponin causing tropomyosin to move away from the myosin binding sites on actin?
In the sliding filament theory, what molecule binds to troponin causing tropomyosin to move away from the myosin binding sites on actin?
- Calcium (correct)
- Magnesium
- Potassium
- Sodium
What type of muscle fiber has a white color, fast contraction speed, and is recruited during high to very high-intensity activities lasting 1-10 seconds?
What type of muscle fiber has a white color, fast contraction speed, and is recruited during high to very high-intensity activities lasting 1-10 seconds?
Which type of muscle contraction involves the muscle length not changing, as the contractile force equals the resistive force?
Which type of muscle contraction involves the muscle length not changing, as the contractile force equals the resistive force?
What is the main reason ATP is crucial in muscle contraction according to the provided text?
What is the main reason ATP is crucial in muscle contraction according to the provided text?
Which directional term refers to a position in a limb that is nearer to the point of attachment or trunk?
Which directional term refers to a position in a limb that is nearer to the point of attachment or trunk?
What directional term indicates a position in a limb that is farther from the point of attachment or trunk?
What directional term indicates a position in a limb that is farther from the point of attachment or trunk?
Which term describes the movement that involves bending a joint and decreasing the angle between two body parts?
Which term describes the movement that involves bending a joint and decreasing the angle between two body parts?
When a body part is moved backward, which plane of movement is primarily involved?
When a body part is moved backward, which plane of movement is primarily involved?
Which term refers to the middle direction toward the middle of the body?
Which term refers to the middle direction toward the middle of the body?
What type of movement involves bending the foot downward at the ankle joint?
What type of movement involves bending the foot downward at the ankle joint?
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