Chapter 4.6-4.7 Flashcards
List the classes of small-molecule neurotransmitters
Amino acids
Monoamines
Acetylcholine
Unconventional neurotransmitters
What does the term “agonist” mean?
A drug that facilitates the effects of another drug
List the two separate groups of Monoamines neurotransmitters
Catecholamines and indolamines
Which monoanime neurotransmitters belong to each group?
Catecholamines- dopamine, epinephrine, and norepinephrine
Indolamines- serotonin
What one class of neurotransmitters are considered large-molecule neurotransmitters?
Neuropeptides
What is the most prevalent excitatory neurotransmitter in the mammalian CNS?
Glutamate
What is the most prevalent inhibitory neurotransmitter?
GABA
What are the seven general steps common to most neurotransmitters?
1) synthesis of the neurotransmitter
2) storage in vesicles
3) breakdown in the cytoplasm of any neurotransmitter that leaks from the vesicles
4) exocytosis
5) inhibitory feedback via autoreceptors
6) activation of postsynaptic receptors
7) deactivation
Drugs preventing the reuptake of which monoanime neurotransmitter are used to treat depression?
Serotonin
True or false. tolerance and withdrawal from a drug are different manifestations of the same underlying physiological change.
True
List two families of endogenous opioids.
1) enkephalins
2) endorphins