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Drugs
Starts with drgus
19
Physiology
Undergraduate 2
10/28/2008

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Term
Drug
Definition
Anything outside body that can be beneficial or harmful to body.
Term
Pharmacokinetics
Definition
study of how drug molecules interact with nervous system and how it is absorbed, distributed (solubility) & eliminated from bloodstream (urine, liver)
Term
Drug Response Curve (DRC)
Definition
relation b/t drug dose and magnitude of drug effect
Term
7 routes of drug administration: fastest, slowest
Definition
Intravenous, Inhalation, Intraperitoneal, Intramuscular, Subscutaneous, Oral & topical
Term
Dependance
Definition
preoccupation with obtaining a drug & continue to use drug despite adverse consequences
Term
Dependance
Definition
preoccupation with obtaining a drug & continue to use drug despite adverse consequences
Term
Physical dependance
Definition
basis of withdrawl, affects a person's health
Term
Reinforce
Definition
strengthen behavior through these things: consequential event + behavioral response
Term
Olds & Milner (who knew old guys wanted to watch rats masturbate?)
Definition
These guys did an experiment stimulating ICSS = increase behavior, as it's the pleasure center of brain
Term
Mesolimbic Dopamine System
Definition
VTA => Ventral Tegmentum Area + medial forebrain bundle + nucleus accumbens projection: all three have receptors that respond easily to rewarding drugs
Term
VTA (ventral tegmentum area)
Definition
Part of Mesolimbic dopamine system: easily succumbs to drugs
Term
Medial forebrain bundle
Definition
bundle of axons in the mesolimbic doparmine system: succumbs to drugs easily
Term
nucleus accumbens projection
Definition
part of the mesolimbic dopamine system: the last part: succumbs to drugs easily
Term
Intracranial Self Stimulation
Definition
ICSS: this is the pleasure circuit of brain, includes the mesolimbic dopamine system: it increases dopamine synthesis and drug abuse appear to act on this system
Term
ICSS increases:
Definition
1. Person with DA agonists in bloodstream (pleasurable drugs)
Term
Tolerance
Definition
repeated use results in decreased effect
Term
withdrawl effects
Definition
these negative affects start once drug stops: are often exact opposite effects of actual drugs
Term
tolerance at certain setting
Definition
leads to accidental overdoses
Term
physical change due to withdrawal
Definition
the synapse used to fight off the drug, due to use, has a decreased amount of receptors due to habitual increase of drug in system...
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