1)What is the name given to the group of cells that synthesize 5-HT in the brain? Name the two specific cell groups that are responsible for most of the serotonergic projections to the forebrain, and list the major forebrain areas that receive these projections

1)What is the name given to the group of cells that synthesize 5-HT in the brain? Name the two specific cell groups that are responsible for most of the serotonergic projections to the forebrain, and list the major forebrain areas that receive these projections.  Discuss how the firing of dorsal raphe serotonergic neurons varies with behavioral state and in response to rewards and punishments.

2)List the names of all the serotonergic receptor subtypes. Which of these receptors are metabotropic, and which are ionotropic?