Q.What is the M line of a sarcomere?

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The M line is the fine line running through the exact middle of the H zone. …

The M line is a thin, membrane-like line that runs through the exact centre of the H zone (which is itself the central, actin-free part of the A band). The M line functionally anchors and holds the middle of the thick (myosin) filaments in their correct, aligned positi …

Locate the M line at the exact midpoint of the sarcomere, inside the H zone, which i …

Confusing the M line (a fine line at the sarcomere's centre, anchoring myosin) with the Z line (a disc at the sarcomere's two en …