Which of the following will NOT be triggered by the release of acetyl choline in the synapse at the neuromuscular junction during muscle contraction?
1
Generation of an action potential in the muscles
2
Release of Ca2+ from the sarcoplasmic reticulum
3
Binding of ATP molecules to the myosin head
4
Shifting of tropomyosin to expose the myosin binding sites on actin filaments