Neurotransmitters Flashcards
1
Q
Prominent in midbrain
Inhibits prolactin secretion
Metabolized by MAO and COMT
A
Dopamine
2
Q
Present in high concn in brainstem
Formed from tryptophan
Coverted ro melatonin in pineal gland
A
Serotonin
3
Q
Formed from histidine
Present in hypothalamic neurons
A
Histamine
4
Q
Most prevalent excitatory NT in brain
Ionotropic receptor subtype includes NMDA
Metabotropic receptors tied to G protein
A
Glutamate
5
Q
Inhibitory NT found primarily in SC and bstem
Increases Cl conductance
A
Glycine
6
Q
Short-acting inhibitory NT in GI tract, BV, CNS
Synthesized in presynaptic terminals, where NO synthase converts arginine to citrulline and NO
A
Nitric oxide
7
Q
Receptor site for BZD and barbiturates
Inc Cl conductance
A
GABAa
8
Q
Receptor that increases K conductance
A
GABAb
