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Questions and Answers
What type of muscle tissue is under voluntary control?
What type of muscle tissue is under voluntary control?
- Skeletal muscle (correct)
- Cardiac muscle
- Involuntary muscle
- Smooth muscle
What protein makes up the thin filaments in a sarcomere?
What protein makes up the thin filaments in a sarcomere?
- Tropomyosin
- Myosin
- Actin (correct)
- Troponin
What triggers the 'powerstroke' in muscle contraction?
What triggers the 'powerstroke' in muscle contraction?
- Myosin head extension
- ADP binding to myosin
- ATP hydrolysis to ADP and inorganic phosphate (correct)
- Cross bridge formation
Where does the signal exchange between an axon terminal and a muscle fiber occur?
Where does the signal exchange between an axon terminal and a muscle fiber occur?
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What gives skeletal muscles their striated appearance?
What gives skeletal muscles their striated appearance?
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