(Describe the 7 steps in neuromuscular junction)

ACTIN Potential travels length of AXON of motor neuron to AXON Terminal-> Charged regulated CALCIUM Channels (Ca+ ions diffuse into TERMINAL)-> entry of Ca+ ion triggers SYNAPTIC VESICLES to release ACETYLCHOLINE-> ACh travels across Synaptic Cleft BINDING to ACh receptors thus triggering channels-> LIGAND-GATED channels OPEN-> (greater flow) Sodium ions ENTER/ (lesser flow) Potassium ions EXIT muscle fiber-> DIFFERENCE in Na+/K+ enter/exit flows NEGATIVELY charges membrane potential-> when membrane potential reaches THRESHOLD value causes action potential propagate along sarcolemma