RT Book, Section SR Print(0) ID 1101678411 T1 Neurotransmitters T2 Principles of Neural Science, Fifth Edition YR 2014 FD 2014 PB McGraw-Hill Education PP New York, NY SN 978-0-07-139011-8 LK neurology.mhmedical.com/content.aspx?aid=1101678411 RD 2024/10/09 AB A Chemical Messenger Must Meet Four Criteria to Be Considered a NeurotransmitterOnly a Few Small-Molecule Substances Act as TransmittersAcetylcholineBiogenic Amine TransmittersCatecholamine TransmittersSerotoninHistamineAmino Acid TransmittersATP and AdenosineSmall-Molecule Transmitters Are Actively Taken Up into VesiclesMany Neuroactive Peptides Serve as TransmittersPeptides and Small-Molecule Transmitters Differ in Several WaysPeptides and Small-Molecule Transmitters Coexist and Can Be Co-releasedRemoval of Transmitter from the Synaptic Cleft Terminates Synaptic TransmissionAn Overall View