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Human Anatomy

Biology

Quiz 12 :

Introduction to the Muscular System: Muscle Tissue

Quiz 12 :

Introduction to the Muscular System: Muscle Tissue

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img -Which labeled structure is the muscle fiber?
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Answer:

C

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img -Which labeled structure is the epimysium?
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A

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What does the perimysium surround?
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Answer:

B

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img -Which labeled structure is the sarcolemma?
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Acetylcholine is released from the axon terminal of a motor neuron and it acts as ________.
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Which structure allows the action potential to travel deep into the interior of the cell to each contractile organelle?
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An electromyogram is a visual representation of ________.
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The neuromuscular junction is found between which two structures?
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img -Which labeled structure is the fascicle?
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What does the thick filament do during a muscle contraction?
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What does the epimysium surround?
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img -Which labeled structure is the myofibril?
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img -Which labeled structure is the fascicle?
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The active sites on the actin filaments are exposed by ________.
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Which part of the body has three electrodes placed on it for the EMG?
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img -Which description is true of skeletal muscle fibers?
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Exposing skeletal muscle fibers to which substance disrupts the cells' troponin-tropomyosin complexes and prevents them from blocking the myosin binding sites on actin?
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What is the smallest functional unit of a muscle contraction?
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img -Which labeled structure is the nucleus?
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Which structures form the boundaries of the sarcomere?
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