Mocking Bird Essay

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Name:_______________________________ Date:______________ 1) Which of the following is a recognized function of skeletal muscle? A) produce movement B) maintain posture C) maintain body temperature D) guard body entrances and exits E) All of the answers are correct. 2) A fascicle is A) a group of muscle fibers that are encased in the perimysium. B) the belly of a muscle. C) a group of muscle fibers that are all part of the same motor unit. D) a group of muscle fibers and motor neurons. E) a collection of myofibrils in a muscle fiber. 3) Put the following structures in order from superficial to deep: 1. muscle fiber 2. perimysium 3. myofibril 4. fascicle 5. endomysium 6. epimysium A) 1, 5, 4, 3, 2, 6 B) 6, 2, 5, 4, 1, 3 C) 6, 2, 4, 5, 1, 3 D) 1, 3, 5, 6, 4, 2 E) 2, 3, 1, 4, 6, 5 4) Interactions between actin and myosin filaments of the sarcomere are responsible for A) muscle fatigue. B) the conduction of neural stimulation to the muscle fiber. C) muscle contraction. D) muscle relaxation. E) the striped appearance of skeletal muscle. 5) The advantage of having many nuclei in a skeletal muscle fiber is A) the ability to contract. B) the ability to produce more ATP with little oxygen. C) the ability to store extra DNA for metabolism. D) the ability to produce large amounts of the muscle proteins needed for growth and repair. E) the ability to produce nutrients for muscle contraction. 1 6) Skeletal muscle fibers are formed from embryonic cells called A) sarcomeres. B) myofibrils. C) myoblasts. D) fascicles. E) myomeres. 7) The repeating unit of a skeletal muscle fiber is the A) sarcolemma. B) sarcomere. C) sarcoplasmic reticulum. D) myofibril. E) myofilament. 8) Which of the following best describes the term sarcomere? A) protein that accounts for elasticity of resting muscle B) repeating unit of striated myofibrils C) storage site for

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