Answer:
5) Nerve impulse.
6) Post synaptic receptors.
7) Depolarization.
8) Sarcolemma
Step-by-step explanation:
When the "Nerve Impulse" reaches the end of an axon, the neurotransmitter is released, and it diffuses to the muscle cell membrane to combine with "Post synaptic receptors" and allow the ion known at "Depolarization" to diffuse in and stimulate an action potential to form and move along the muscle cell membrane known as the "Sarcolemma".