bio 116 ch 6 – Flashcards
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bind to the protein troponin
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Following electrical stimulation of a muscle cell, calcium functions to
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All muscles shorten when they contract
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Which one of the following statements correctly describes activities of muscles?
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FALSE
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Unlike skeletal muscle, cardiac and smooth muscle do not respond at all to the nervous system, but contract on their own. Differences in the rate of contraction of smooth and cardiac muscle are due to the action of pacemakers in cardiac muscles.
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Sarcomeres shorten.
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Which of the following happens during muscle contraction
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The insertion is pulled toward the origin during contraction.
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Which one of the following statements correctly describes the origin and insertion of a muscle?
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maintenance of body calcium stores
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All of the following are functions of the muscular system, EXCEPT __________.
