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Acetylcholine (ACh) is a common neurotransmitter secreted by a variety of neurons. It binds to two different receptors-Ionotropic (fast) nicotinic receptors and metabotropic (slow) muscarinic receptors.1  role in central nervous system. 2  role in peripheral nervous system. 3  receptors and signaling.4  agonists and antagonists.cetylcholine (ACh) is a common neurotransmitter secreted by a variety of neurons. It binds to two different receptors-Ionotropic (fast) nicotinic receptors and metabotropic (slow) muscarinic receptors.
Serotonin as a neurotransmitter Serotonin is a neurotransmitter involved in the transmission of nerve impulses. Neurotransmitters are chemical messengers within the brain that allow the communication between nerve cells.