Acetylcholine is released and then they are tend to
bind or attach to receptors present on the muscle
membrane.
binding starts a rapid increase the permeability to
both sodium and potassium ions, they are further leading to
Repolarization causing an action potential to take
place.
the binding force or bond between the chains of protein
within the muscle cell changes which they are further leading to
contraction.then fibers to contract at the same time.