Problem:

The events which occur at the neuromuscular junction are out of order in the list below. Place them in the proper sequence. Start with: Action potential arrives at the axon terminal.

a) The skeletal muscle contracts

b) An action potential is initiated on the sarcolemma

c) Calcium ions enter the axon terminal

d) Synaptic vesicles fuse to the membrane of the axon terminal

e) An action potential is propagated along the sarcolemma and down the T-tubules

f) Acetylcholine is released into the synaptic cleft

g) Acetylcholine binds to receptor sites on the motor end plate

h) Calcium ions are released from terminal cisternae

Please place them in proper sequence and explain thoroughly.