Lesson Number: 7Remember to print a copy of this preview and mark your answers before submitting the actual progress evaluation.30 questions, 1 point each, 30 points total.Questions 1-29 are multiple-choice. For these questions, choose the one best answer.1. Muscle spindles provide sensory information about muscle __________.A. fatigueB. force productionC. ph levelsD. length2. Fast Twitch fibers are:A. highly aerobic.B. efficient.C. resistant to fatigue.D. None of the above3. Myosin is known as the:A. thin filament.B. thick filament.C. dead filament.D. live filament.4. Actin is known as the:A. thin filament.B. thick filament.C. dead filament.D. live filament.5. The majority of strength gains in the first 6 weeks of training are due mostly to:A. neural adaptations.B. fiber type alterations.C. hyperplasia.D. hypertrophy.6. A bundle of muscle fibers is called:A. muscle belly.B. fascicle.C. sarcomere.D. sarcolemma.7. Muscle fibers are made up of:A. myofibrils.B. fascicles.C. sarcoplasmic reticulums.D. sarcolemmas.8. The repeating contractile unit of muscle is:A. sarcomere.B. sarcolemma.C. sarcoplasma.D. sarcohelix.9. What theory is used to explain how muscles contract?A. Sliding Filament TheoryB. Sliding Concentric-EccentricC. Sliding Contraction TheoryD. Ball's theory of General Relativity and Life10. The motor neuron and all of the fibers it innervates is called:11. Elite endurance runners are likely to have a majority of:A. Type 1 fibers.B. Type 2a fibers.C. Type 2b fibers.D. fast-twitch fibers.12. Elite sprinters are likely to have a majority of:A. Type 1 fibers.B. Type 2a fibers.C. Type 2b fibers.D. oxidative fibers.13. Slow-twitch fibers are:A. motor unit.B. sarcolemma.C. sarcomere.D. neuromuscular junction.A. highly aerobic.B. efficient.C. resistant to fatigue.D. All of the above14. Intermediate fibers are also known as:A. Type 1.B. Type 2b.C. oxidative-glycolytic.D. glycolytic.15. Which of the following is TRUE?A. Fast-twitch fibers are more suited to strength and speed activities.B. People with higher % of fast-twitch fibers will respond quicker and usually increase strength greater than people with a lower % of fast-twitch fibers.C. Fiber type distribution (% of fast vs. slow) is mostly genetic.D. All of the above16. A. summation.B. tetany.C. progression.D. All or None Law17.Approximately what percentage of your strength gains can be accomplished by doing only one set to failure?A. 20-30%B. 30-40%C. 50-60%D. 70-80%18. Hypertrophy:A. is an increase in cell (fiber) number.B. is an increase in cell (fiber) size.C. is responsible for most of the strength gains at the start of a resistance program.D. B and C19. Hyperplasia:A. is an increase in cell (fiber) number.B. is an increase in cell (fiber) size.C. is responsible for most of the strength gains at the start of a resistance program.D. B and C20. As the frequency of stimulations is increased, the muscle does not have time to relax between stimuli and the force generated becomes additive. This response or "ramping up" that leads to an increase in tension compared to a single twitch is known as:A. summation.B. progression.C. bradycardia.D. proprioreception.21. When an electrical signal stimulates the muscle fiber, the sarcoplasmic reticulum releases _________.A. sodium.B. potassium.C. calcium.D. All of the above22. The electrical signal that travels through the nerve and stimulates the muscle fiber to contract is called what?A. Action potentialB. Postsynaptic pulseC. IPSPD. T-Wave23. Golgi Tendon Organs (GTO) provide sensory information about:A. summation.B. tension.C. ph Levels.D. angle of pull.24. The amount of force generated depends on the:A. number and types of fibers recruited.B. nature of the stimulation.C. initial length of the muscle.D. All of the above25. __________is responsible for the "stretch reflex."A. Muscle spindleB. Golgi tendon organC. Motor neuronD. None of the above26. Which type of muscle contraction develops no force?A. IsometricB. ConcentricC. EccentricD. None of the choices27. Which of the following best defines the central nervous system?A. all somatic nerves inside the bodyB. the brain and spinal cordC. the motor cortex and motor neuronsD. None of the above28. EMG is a common abbreviation that stands for which of the following?A. ElectromusculargramB. Excitation maximal gainC. Eccentric muscle groupD. Electromyographic29. Which of the following is not associated with delayed onset muscle soreness (DOMS)?A. Inflammation within the muscleB. Eccentric contractionsC. Low ATP levelsD. High intensity exercise/movements that clients are not accustomed to performingQuestion 30 is True/False. For this question, choose A if the statement is true and B if the statement is false.30. Power Athletes such as throwers and jumpers have a higher percentage of type 1 fibers.A. TrueB. FalseNutritional Sciences 1340: Introduction to Exercise and FitnessLesson 8 Assessment30 Questions, 30 Points TotalName: Sam BeffaMizzou Online ID: 318020E-Mail: [email protected]/False→ 5 questions, 1 point each, 5 points totalDirections: Questions 1-5 are True/False. For these questions, type A if the statement is true and B if the statement is false in the space provided below the question.1. Recommended body weight can be accurately determined using height/weight charts.A. TrueB. FalseAnswer: B. False2. Dual energy X-ray absorptiometry uses computerized pressure sensors to determine the amount of air displaced by the person inside the chamber.A. TrueB. FalseAnswer: B. False3. Air displacement is easy to administer and compares favorably (according to initial research) with hydrostatic weighing.A. TrueB. FalseAnswer: A. True4. Assessing body composition using skinfold thickness is based on the principle that the amount of subcutaneous fat is proportional to total body fat.A. TrueB. FalseAnswer: A. True5. Body mass index (BMI) is a better predictor than waist circumference (WC) of the risk for disease.A. TrueB. FalseAnswer: B. FalseFill-in-the-Blank→ 6 questions, 1 point each, 6 points total Directions: Questions 6-10 are fill-in-the-blank. For these questions, type the best answer in the space provided.6. Carbohydrate and _Sugar___ serve as the two main energy substrates (sources) for exercise.Sugar is a form of carbohydrate. The correct answer is fat. In Chapter 4: Body Composition, section 4.1. Essential and Storage Fat. The textbook compares/contrasts essential and storage fat and lists the basic functions of fat. One