MUSCLE
SKELETAL MUSCLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The middle of a sarcomere is called the
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m line
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z line
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A band
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I band
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Explanation:
Detailed explanation-1: -M line: M line contains the protein called myomesin and it marks the centre of the sarcomere.
Detailed explanation-2: -noun. ˈem-ˌlīn. : a thin dark line across the center of the H zone of a striated muscle fiber. called also M band.
Detailed explanation-3: -The M-line holds together the thick myosin filaments. The Z-line differentiates between each sarcomere. During the contraction of skeletal muscle cells the A-band stays the same length whereas the H-zone and I-band decrease in length. The distance between the Z-lines also decreases.
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