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Muscle Structure and Function (Ortho PT Secrets) Part 1 - Coggle Diagram

- - - - A-band-Middle of sarcomere (overlapping portion of Actin/Myosin and myosin portion). Anisotropic due to dark color
        H-Band-middle portion of A Band (myosin portion only)
        M line: Bisects H band. Maintains sarcomere orientation through contractions
        Z disks: ends of each sarcomere
        Optimal length: 2.4-2.5 micrometers
      - Contractile proteins: myosin (50%), actin (20%) of myofibril
        Regulatory Proteins: troponin and Tropomyosin
        Structural Proteins-see below
        -C-Protein (thick filiament): holds tail of myosin in correct orientation
        -Titin: links end of thick filament to Z disk
        -M line Protein (aka myomesin): keeps thick and thin filaments in correct orientation
        -alpha-actinin: attaches actin together at Z disks
        -Desmin: links Z disks of adjacent myofibrils
        spectrin/dystrophin: structural/functional roles and sarcolemmal proteins