Flashcards in Brain Neurotransmitter Systems Deck (19)
Hyperpolarization usually involves what kind of receptors?
Of inhibitory or excitatory, which signal is more prominent?
What does lidocaine do?
Blocks sodium channels and prevents signal propagation
What does DOPA do and what is it used to treat?
DOPA is an intermediate product between tyrosine and dopamine, it is used to treat Parkinsons
What does reserpine do?
Depletes neurotransmitter stores, specifically norepinephrine
What do monamine oxidase inhibitors do?
Prevent metabolism of neurotransmitters
What does methamphetamine do?
Increases release of neurotransmitters
What does cocaine do?
Prevents dopamine reuptake into presynaptic terminals
Pathways that are aligned linearly for sensory perception or motor control are called...
Neurological systems that spread out and do not follow a direct path are called
What types of neurotransmitters are found in hierarchical systems?
Glutamate, GABA, glycine
What types of neurotransmitters are associated with diffuse systems?
What are the three types of receptors for glutamate?
NMDA (Ca, Na and K), AMPA (Na & K), Kainic acid (Na &K)
Does GABA inhibit or excite postsynaptic neurons?
Does glutamate inhibit or excite presynaptic neurons?
What is the difference between GABAa and GABAb?
GABAa is a chloride channel, GABAb is a metabotropic receptor that augments K channels and inhibits Ca channels
What is glycine? Inhibitory or excitatory?
Which dopamine receptor is defective in Parkinson's disease?