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Questions and Answers
What type of filaments are longitudinally arranged in the myofibrils?
What type of filaments are longitudinally arranged in the myofibrils?
- Thread-like Filaments (correct)
- Flat Filaments
- Round Filaments
- Spiral Filaments
Where does the extension of thick filaments occur?
Where does the extension of thick filaments occur?
- From Z-line to A-band
- From Z-line to I-band
- From Z-line to M-line
- From Z-line to H-zone (correct)
Which protein is NOT part of the protein content of myofilaments?
Which protein is NOT part of the protein content of myofilaments?
- Troponin
- Tropomyosin
- Actin
- Myosin (correct)
Why is the A band dark in appearance?
Why is the A band dark in appearance?
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What is the role of the sarcolemma in muscle contraction?
What is the role of the sarcolemma in muscle contraction?
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What is the role of the triad in muscle contraction?
What is the role of the triad in muscle contraction?
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What happens when the thin filaments slide towards the middle of the sarcomere?
What happens when the thin filaments slide towards the middle of the sarcomere?
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How does energy release from ATP contribute to muscle contraction?
How does energy release from ATP contribute to muscle contraction?
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What is the function of the terminal cisternae in muscle contraction?
What is the function of the terminal cisternae in muscle contraction?
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How does the Sarcoplasm transmit nerve impulses to the sarcoplasmic reticulum?
How does the Sarcoplasm transmit nerve impulses to the sarcoplasmic reticulum?
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