6706920
Beschreibung
Quiz von Phillip McKelvey, aktualisiert more than 1 year ago
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Erstellt von Phillip McKelvey
vor etwa 8 Jahre
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Frage 1
Frage
What proteins are found in a sarcomere?
Antworten
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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
Frage 2
Frage
Myofibrils have light and dark bands called neuromuscular junctions.
Antworten
- True
- False
Frage 3
Frage
The contractile elements of muscle fibres are called ________.
Antworten
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Sarcoplasm
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Myofibrils
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The Sarcoplasmic Reticulum
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Fasciculi
Frage 4
Frage
The sliding filament theory of muscle contraction involves;
Antworten
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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
Frage 5
Frage
The junction between a nerve and a muscle is called a_____________.
Antworten
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Neuromuscular junction
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Synapse
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Sarcomere
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Neurotransmitter
Frage 6
Frage
A muscle contraction begins with release of _______, which reaches a sarcolemma, depolarizing the sarcolemma.
Antworten
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Calcium
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ATP
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Troponin
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Acetylcholine
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