Multiple choice

Which of the following is the functional unit of contraction in the muscles?

  1. Sarcomere

  2. Meromyosin

  3. Sarcolemma

  4. Neuro muscular junction

  5. None of these

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A Correct answer
Explanation

Yes, the portion of the myofibril between two successive ‘Z’ lines is considered the functional unit of contraction, and is called a sarcomere.