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Muscular system quiz 1

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1. What is a “sarcomere”?

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2. Which of the following muscle cell structures is the longest?

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3. Which statement below best describes the role of Ca++ in muscle contraction?

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4. Of the events that lead to myofilaments sliding over each other, which of the following happens first?

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5. By what name is something that attaches a bone to another bone known?

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6. Where are the semimembranosus and semitendinosus muscles located?

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7. By what name is the plasma membrane of a muscle cell known?

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8. Which is the largest of the structures in a muscle fibre?

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9. Which of the following muscles is named according to its origin and insertion?

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10. Which term is given to the unit of a myofibril that contracts?

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11. Smooth muscle is different from skeletal muscle because smooth muscle:

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12. Which of the muscles listed below is named according to its action?

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13. All of the following structures are part of a muscle cell except?

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14. During muscle cell contraction, what happens because of Ca++ binding to troponin?

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15. By which term is a muscle that opposes or reverses a particular movement called?

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16. Smooth muscle cells may be described by which of the following?

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17. Which of the following is the smallest structure within a muscle fibre?

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18. Which protein(s) are found in thin myofilaments?

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19. Which of the events below is the FIRST to occur prior to a muscle cell contracting?

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20. Which muscle naming criteria are used to name the quadriceps femoris?

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