Home > Muscular System > Sliding Filament Theory

Introduction (Page 1 of 31) Goals (Page 2 of 31) Molecular Participants (Page 3 of 31) Sarcomere (Page 4 of 31) Myosin (Page 5 of 31) Myosin Molecule With Hinged Head (Page 6 of 31) Myosin Molecule With Hinged Head and Tail (Page 7 of 31) Myosin ATP Binding Site (Page 8 of 31) Energized Myosin Head (Page 9 of 31) Actin Binding Site on Myosin (Page 10 of 31) Thin Filaments of the Sarcomere (Page 11 of 31) Actin (Page 12 of 31) Tropomyosin (Page 13 of 31) Troponin (Page 14 of 31) Calcium Ions (Page 15 of 31) Review of Molecular Participants (Page 16 of 31) Overview: Single Cross Bridge Cycle (Page 17 of 31) Six Steps of Cross Bridge Cycling (Page 18 of 31) Step 1: Exposure of Binding Sites on Actin (Page 19 of 31) Step 2: Binding of Myosin to Actin (Page 20 of 31) Step 3: Power Stroke of the Cross Bridge (Page 21 of 31) Step 4: Disconnecting the Myosin Head From Actin (Page 22 of 31) Step 5: Re-energizing the Myosin Head (Page 23 of 31) Step 6: Removal of Calcium Ions (Page 24 of 31) Calcium Pumps (Page 25 of 31) Review: Single Cross Bridge Cycle (Page 26 of 31) Multiple Cross Bridge Cycles (Page 27 of 31) Multiple Myofilaments (Page 28 of 31) Review of the Role of ATP (Page 29 of 31) Summary (Page 30 of 31) Textbook References (Page 31 of 31)