Human Physiology Lecture Notes

Difference between Primary and Secondary Myofilaments – Comparison Table


primary vs secondary myofilaments

Primary Myofilaments vs Secondary Myofilaments
(Difference between the Primary Myofilaments and Secondary Myofilaments of Myofibrils)

Myofilaments are the filaments of myofibrils (myofibrils are the basic structural unit of muscle cells). The myofilaments are composed of proteins particularly actin and myosin. The detailed structural analysis shows that the muscle sarcomere composed of bundles of two types of myofilaments called primary myofilaments and secondary myofilaments. The present post discusses the difference between the Primary Myofilaments and Secondary Myofilaments with a comparison table.

Learn more: Difference between A-Band and I-Band

Difference between Primary and Secondary Myofilaments

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