Contractile element in myofibril is_______________?
Correct answer: C. Sarcomere
- A. H band
- B. Sarcoplasm
- C. Sarcomere
- D. A line
Explanation
The sarcomere is the basic contractile unit of a myofibril, extending from one Z line to the next. H bands and A lines are regions or bands within the sarcomere, not complete contractile units.
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