What Happens When Acetylcholine Is Released Into The Neuromuscular Junction?

What Happens When Acetylcholine Is Released Into The Neuromuscular Junction? When an action potential reaches a neuromuscular junction, it causes acetylcholine to be released into this synapse. … If enough of these sodium ions enter the muscle fibre to raise it from its resting potential of -95 mV to about -50 mV, they trigger a