Muscle contraction following nerve impulse involves following steps expect
Acetylcholine is the neurotransmitter in the NMJ Ref: Ganong's Review of Medical Physiology 26th edition
Action potential across nerve muscle junction (NMJ)
Dopamine release at NMJ
Release of calcium form sarcoplasmic reticulum
Calcium initiates attractive forces between actin and myosin filament
Nervous system