What neurotransmitter between muscle cells and the nervous system is?

The neurotransmitter between muscle cells and the nervous system is acetylcholine (ACh). It plays a crucial role in transmitting signals from motor neurons to skeletal muscles, enabling voluntary movements. ACh is released from the motor neuron's axon terminals into the synaptic cleft, the space between the neuron and the muscle fiber. It binds to specific receptors on the muscle cell membrane, causing an electrical impulse that triggers muscle contraction. Acetylcholine is also involved in the transmission of signals within the nervous system, particularly at synapses between neurons in the central nervous system.