NEUROTRANSMITTERS Flashcards
What are the three classes of conventional small neurotransmitters?
-amino acids, monoamines, and acetylcholine.
where are amino acids located?
In the CNS
what are the four most widely studied amino acid neurotransmitters ?
glutamate, aspartate, glycine, and gamma-aminobutyric acid (GABA)
Describe glutamate.
The most prevalent excitatory neurotransmitter in the CNS.
Describe aspartate.
An amino acid neurotransmitter.
Describe glycine.
An amino acid neurotransmitter.
Describe gamma-aminobutyric acid (GABA).
The amino acid neurotransmitter that is synthesized from glutamate; the most prevalent inhibitory neurotransmitter in the mammalian CNS.
Where are monamine neurotransmitters located?
In the brain stem.
Where are monoamine neurotransmitters released into?
the extracellular fluid.
What are the four monoamine neurotransmitters?
dopamine, epinephrine, norepinephrine, and serotonin.
Describe dopamine.
One of the three catecholamine neurotransmitters.
Describe epinephrine.
One of the three catecholamine neurotransmitters.
Describe norepinephrine.
One of the three catecholamine neurotransmitters.
Describe serotonin.
An indolamine neurotransmitter; the only member of this class of monoamine neurotransmitters found in the mammalian nervous system.
What are the two subgroups of monoamine neurotransmitters?
catecholamines and indolamines.