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Explain sliding filament theory of muscl...

Explain sliding filament theory of muscle contration.

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Central Nervous initiate muscle contraction via motor neuron
Motor neuron stimulate muscle fibre `to` secrete neurotransmitter `to` generate action potential in sercolemma `to` Release of `Ca^(2+)` in sarcoplasm `to Ca^(2+)` binds with troponin `to` Unmask active site `to` Myosin head binds to actin at active site and form cross bridge using ATP `to` Pulls the actin filament towards the center of A. band `to Z` lines also pulled thereby causing shortening of sarcomere i.e., contraction . I band get reduced, whereas the A. band retain the length
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Sliding filament theory can be best explained as