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.
In response to a stimulus, the brain or the spinal cord may initiate muscle cell contraction to enable movement. The neurotransmitter that signals muscle cell contraction is acetylcholine, and it is released in the synapse between the neuron and the muscle cell. If the acetylcholine that is released is not broken down, the muscle cells remain in a contracted state and cannot respond effectively to new signals from the brain.