EXAM FW260

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Park University *

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260

Subject

Chemistry

Date

Apr 3, 2024

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docx

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Uploaded by PrivateGoldfinch2653

CH1 1. Muscle force can be moderated by all of the following EXCEPT a. Number of motor units recruited b. Type of motor units recruited c. Motor neurons selectively secrete ACH to some myofibers but ont others d. Rate coding to created tetanus contractions e. All of the above are ways to moderate muscular force 2. For Questions 2-4 Refer to the image below to select the correct label for that portion of the sarcomere. a. Z-line I band b. A band c. H zone 3. For Questions 2-4 Refer to the image below to select the correct label for that portion of the sarcomere. a. Z-line

I band c. A band d. H zone 4. For Questions 2-4 Refer to the image below to select the correct label for that portion of the sarcomere. a. Z-line b. I band c. A band d. H zone 5. A bundle of myofibers wrapped in perimysium is a. A sarcomere b. A sarcolemma c. A fascicle d. A myofibril e. A sarcoplasmic reticulum

6. A muscle spindle fiber consists of specialized muscle fibers called a. Intrafusal fibers b. Extrafusal fibers Golgi tendon fibers d. Motor cortex fibers e. None of the above 7. Which of the following is the neurotransmitter released at the neuromuscular junction? a. Epinephrine b. Nor-epinephrine c. Acetylcholine d. Lactate e. Glycogen Ch2: 8. Most of the musculoskeletal levers in the body are

a. First class levers b. Second class levers c. Third class levers d. Fourth class levers e. Mechanically advantaged levers 9. What type of muscle shape is associated with greater muscle force production but reduced range of motion. a. Circular b. multi-pennate c. Fusiform d. Di-gastric 10. In a however, for a muscle the anatomical and physiological cross sectional areas ae the same, muscle, they will be very different. a. Convergent/fusiform b. Fusiform/bipennate c. Bipennate/convergent

d. Bipennate/fusiform 11. Which of the following is the definition of Power? a. Force x acceleration b. Force x distance c. Force x velocity d. Force x torque 12. A jumping jack is performed primarily in the plane of motion a. Frontal plane b. Sagittal plane c. Transverse plane d. None of these 13. There are very few exercise machines that can target the plane of motion a. Frontal plane b. Sagittal plane

c. Transverse plane 14. Which of the following forms of resistance training is associated with progressively increasing intensity (force) throughout the concentric phase of an exercise. a. Free weights b. Fluid resistance c. Elastic resistance d. Friction resistance 15. The Classic formula and the newer Sinclair formula were devised to a. Calculate the exercise load on an athlete in an attempt to reduce overtraining risk To quantify how the type of resistance will impact levels of adaptation c. Compare strength performances between individuals of various sizes or weight categories d. Determine the amount of force on a muscle at various joint angles and moment arm lengths during a resistance training movement. e. None of the above 16. Based upon our knowledge of the force velocity curve, which of the following is TRUE? a. Muscles are stronger concentrically than they are eccentrically b. Muscles are stronger isometrically than they are concentrically

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