6706920
Descrição
Quiz por Phillip McKelvey, atualizado more than 1 year ago
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Criado por Phillip McKelvey
quase 8 anos atrás
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Questão 1
Questão
What proteins are found in a sarcomere?
Responda
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Only Actin and Myosin
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Actin, Myosin, Troponin and Tropomyosin
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The Myofibril
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The Sarcoplasmic Reticulum
Questão 2
Questão
Myofibrils have light and dark bands called neuromuscular junctions.
Responda
- True
- False
Questão 3
Questão
The contractile elements of muscle fibres are called ________.
Responda
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Sarcoplasm
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Myofibrils
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The Sarcoplasmic Reticulum
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Fasciculi
Questão 4
Questão
The sliding filament theory of muscle contraction involves;
Responda
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Calcium ions releasing ATP for energy
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Calcium ions binding with troponin, which shifts tropomyosin and allows the myosin-binding sites on actin to be exposed
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Neuromuscular junctions directly producing the movement of actin and myosin
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Actin filaments moving the myosin filaments in each sarcomere
Questão 5
Questão
The junction between a nerve and a muscle is called a_____________.
Responda
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Neuromuscular junction
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Synapse
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Sarcomere
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Neurotransmitter
Questão 6
Questão
A muscle contraction begins with release of _______, which reaches a sarcolemma, depolarizing the sarcolemma.
Responda
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Calcium
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ATP
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Troponin
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Acetylcholine
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