MUSCLE PHYSIOLOGY

Detailed explanation-1: -The myosin filaments are anchored at the M line in the middle of the sarcomere .

Detailed explanation-2: -M-line: The line at the center of a sarcomere to which myosin bind. Z-line: Neighboring, parallel lines that define a sarcomere. H-band: the area adjacent to the M-line, where myosin is not superimposed by actin.

Detailed explanation-3: -Thick filaments emanating from the M-line are not directly attached to peripheral cellular structures but are instead “anchored” by their interactions with thin filaments. Thin filaments are in turn anchored at the opposite end by characteristic structures named dense bodies (Waterston et al.