MUSCLE
SKELETAL MUSCLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The area of interconnecting actin molecules, also known as the ends of a sarcomere, is called the
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I zone
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Z line
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M line
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A band
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Explanation:
Detailed explanation-1: -Because actin is tethered to structures located at the lateral ends of each sarcomere called z discs or “z bands, ” any shortening of the actin filament length would result in a shortening of the sarcomere and thus the muscle.
Detailed explanation-2: -Cellular component-Z line The Z line (from the German “Zwischen") largely consists of alpha-actinin homodimers organized in an antiparallel fashion, thereby providing a backbone for the insertions of actin-based thin filaments, as well as titin and nebulin/nebulette.
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