Question

describe the important steps in muscles contraction. ​

Answer 1

Answer:

During muscle contraction the thin actin filaments slide over the thick myosin filament. When Calcium is present the blocked active site of the actin clears. Step B: Power stroke: myosin head pivots pulling the actin filament toward the center. Step C: The cross bridge detaches when a new ATP binds with the myosin.

Answer 2

During skeletal muscle contraction, the thick filament slides over the thin filament by a repeated binding and releases of myosin head along the filament. This whole process occurs in a sequential manner.