Sarcomere is the functional unit of contracti | vedclass

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(A) The correct answer is $A$. $A$ sarcomere is defined as the functional unit of muscle contraction. Structurally,it is the segment of a myofibril lo

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The portion of myofibril between two successive '$Z$' lines.

Vedclass · Answer

(A) The correct answer is $A$. $A$ sarcomere is defined as the functional unit of muscle contraction. Structurally,it is the segment of a myofibril located between two successive '$Z$' lines (also known as '$Z$' discs). These '$Z$' lines are elastic fibres that bisect the '$I$' bands and serve as the anchor points for actin filaments.

Sarcomere is the functional unit of contraction in a muscle fibre. Identify the portion of myofibril that constitutes a sarcomere.

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