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  Indian J Med Microbiol
 

Figure 1: Ultrastructure of a skeletal muscle fiber. (a) Arrangement of thin (actin) and thick (myosin) filaments and the Z line in a relaxed skeletal muscle. (b and c) Structure of actin and myosin filaments (with their components). (d) Sarcotubular system

Figure 1: Ultrastructure of a skeletal muscle fiber. (a) Arrangement of thin (actin) and thick (myosin) filaments and the Z line in a relaxed skeletal muscle. (b and c) Structure of actin and myosin filaments (with their components). (d) Sarcotubular system