Which of the Following Statements About the Monoamine Neurotransmitters Is

Multiple Choice

Which of the following statements about the monoamine neurotransmitters is correct?

A) Although produced by a relatively small number of neurons their actions are widespread throughout the brain.
B) Their receptors are mostly ligand-gated ion channels.
C) Their receptors are only found postsynaptically.
D) Their receptors are usually found on separate populations of neurons to the receptors for GABA and glutamate.