Question

Enlist the steps in muscle contraction as explained by sliding filament theory

Answer 1

The sliding filament theory is the explanation for how muscles contract to produce force. As we have mentioned on previous pages, the actin and myosin filaments within the sarcomeres of muscle fibres bind to create cross-bridges and slide past one another, creating a contraction

Answer 2

The steps in muscle contraction as explained by sliding filament theory:

In stimulates muscles, action potential generates.

• In the first step release of calcium and process of depolarisation happen.
• In the next step, the cross-bridge between actin and myosin forms.
• Between actin and myosin filaments sliding mechanism occurs in third step.
• Contraction of muscles occur in the last step.