Neurotransmitters are also found at the axon endings of motor neurons, where they stimulate the muscle fibers to contract. The first of the neurotransmitters to be studied, acetylcholine, transfers nerve impulses from one neuron to another, where it propagates nerve impulses in the receiving neuron, or from a neuron to a muscle cell, where it generates muscle contractions

Neurotransmitters are also found at the axon endings of motor neurons, where they stimulate the muscle fibers to contract. The first of the neurotransmitters to be studied, acetylcholine, transfers nerve impulses from one neuron to another, where it propagates nerve impulses in the receiving neuron, or from a neuron to a muscle cell, where it generates muscle contractions

“In animals, acetylcholine and/or the synthesizing enzyme choline acetyltransferase have been demonstrated in epithelial (airways, alimentary tract, urogenital tract, epidermis), mesothelial (pleura, pericardium), endothelial, muscle and immune cells, mainly in granulocytes, lymphocytes, macrophages, and mast cells (Wessler et al. 2001). ”

 

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