Q: What is the structure that holds the thick myosin filaments together in a muscle fiber?
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A
‘H’ line
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B
‘A’ line
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C
‘M’ line
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D
‘Z’ line
C
Answer:
C
Explanation:
The ‘M’ line is a thin and fibrous structure that holds the myosin filaments or the thick filaments together in the middle of the ‘A’ band or the dark band of a muscle fiber. It is an important component of the sarcomere, the basic unit of muscle contraction.
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