The distance or length of the myofibril betwe | vedclass

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(A) The functional unit of contraction in a skeletal muscle is known as the $Sarcomere$.It is defined as the segment of a myofibril located between tw

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Sarcomere

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(A) The functional unit of contraction in a skeletal muscle is known as the $Sarcomere$.It is defined as the segment of a myofibril located between two successive $Z$-lines (or $Z$-bands).These $Z$-lines are dense fibrous connective tissue structures that anchor the actin filaments.Therefore,the distance between two adjacent $Z$-bands is called a $Sarcomere$.

The distance or length of the myofibril between two adjacent $Z$-bands is called

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