15. Cytoskeleton and Cell Movement

Muscle Contractions

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Which of the following structures is composed of actin, but no myosin?
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In muscle tissue, which type of muscle cell typically has more than one nucleus per cell?
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In skeletal muscle physiology, a motor neuron meets a muscle cell at the:
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In skeletal muscle physiology, what is the name of the cell membrane of a muscle fiber?
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In the context of muscle contractions, what is the name of the cell membrane of a muscle fiber?
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In skeletal muscle, what event directly initiates an action potential in the muscle fiber (sarcolemma)?
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In skeletal muscle fibers, what is the name of the muscle cell membrane?
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In the context of muscle contractions, the contractile unit of a muscle cell is the:
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When calcium binds to troponin, what happens to tropomyosin?
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In the context of muscle contractions, what is another name for a skeletal muscle cell?
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In skeletal muscle, the specialized synapse where a motor neuron meets a muscle cell is called the:
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Which of the following is not a structure of the sarcomere?
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In the context of muscle contractions, which type of muscle cell does not contain myofibrils (and therefore lacks visible sarcomeres/striations)?
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When a cross-bridge structure is formed during a muscle contraction, the band lengths shorten and contract.
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In skeletal muscle physiology, the cell membrane of a muscle fiber is called the:
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