Thick Thin filament filament °o8°。 。 A cross section through a sarcomere shows that: each myosin can interact with 6 actin filaments, and each actin can interact with 3 myosin filaments
A cross section through a sarcomere shows that: • each myosin can interact with 6 actin filaments, and • each actin can interact with 3 myosin filaments
Copyright e The McGraw-Hill Companies, Inc. Permission required for reproduction or display sarcomere i band- A band- H ZO Z line Z line Titin Thin filament M line Thick filament Sarcomere structures in an electron micrograph
Sarcomere structures in an electron micrograph
Myosin filaments Actin filaments Actin filaments Filaments Z disk k>disk AZOne AZOne I band A band i band-一 Sarcomere
Filaments
Myosin filament(thick filamen粗肌丝 > Myosin肌凝蛋白 Thick filament Myosin tail Myosin heads (cross bridges
Myosin肌凝蛋白 Myosin filament (thick filament)粗肌丝
Actin filament (thin filament细肌丝 Actin肌纤蛋白 Tropomyosin原肌凝蛋白 Troponin肌钙蛋白 Tropomyosin Troponin complex G actin Thin filament
Actin肌纤蛋白 Tropomyosin原肌凝蛋白 Troponin肌钙蛋白 Actin filament (thin filament)细肌丝