ESIM - Evaporative System Integrity Monitor, All Acronyms, viewed April 16, 2017, <https://www.allacronyms.com/ESIM/Evaporative_System_Integrity_Monitor>.
Acetylcholine is the neurotransmitter used at the neuromuscular junction âin other words, it is the chemical that motor neurons of the nervous system release in order to activate muscles.
Calcium triggers the release of acetylcholine from the neuron. Acetylcholine then crosses the synapse and binds to acetylcholine receptors on the muscle cell membrane. Like a key in a lock, acetylcholine opens sodium ion channels that depolarize and excite the muscle membrane.he space between the motor neuron and the skeletal muscle cell is simply referred to as a synapse. More specifically, the synapse between a motor neuron and a skeletal muscle cell is referred to as a myoneural or neuromuscular junction.