Which structural unit allows actin and myosin filaments to slide during cardiac muscle contraction?
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Correct answer: Sarcomere
The sarcomere is the basic contractile unit of striated muscle. It contains organized actin and myosin filaments that slide past each other during contraction.
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More Cardiac Muscle Histology questions
- Which membrane structure surrounds each cardiac muscle cell?
- Which structure connects adjacent cardiac cells both mechanically and electrically?
- Which feature allows cardiac muscle tissue to contract as a functional syncytium?
- Compared to skeletal muscle, cardiac muscle contraction is:
- Which structural protein anchors actin filaments at the Z line in cardiac muscle?
- Which cardiac muscle feature increases efficiency of contraction and coordination?