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48 Cards in this Set

  • Front
  • Back

The faster a psychoactive drug reaches its target in the CNS the

greater its reinforcing effect
The route of drug administration that delivers a drug to the brain the quickest is
inhaling or insufflation
True or False - The faster the drug gets to the brain the more potent the experienced effect
True
Injection bypasses most of the body's defenses and is therefore the
most dangerous method of administration.
Describe mucosal membrane absorption methods of drug administration
rectal/vaginal suppositories, buccal, sublingual
After administration, psychoactive drugs travel to the brain via
circulatory system
As drugs travel to and through every organ of the body they
are stored, are biotransformed and cause direct effects
An adult person has approximately 6 to 8 quarts of blood in their circulatory system. The amount of blood in a 12-year-old child's circulatory system is approximately
3 to 4 quarts
A developing fetus is very vulnerable to psychoactive drugs because
the blood-brain barrier is still not completely formed
The mechanism for processing, using, and inactivating a foreign or toxic substance is known as drug
metabolism
The key organs for metabolism and excretion of drugs from the body are the
liver and kidneys
The half-life of a drug is a measure of the time that refers to how long it takes to
inactivate or eliminate the drug
Factors that affect the half-life of drugs
emotions, gender, heredity
Exaggeration of effects that result when two or more drugs are taken at the same time is called
drug synergism
Dispositional or metabolic tolerance means
the body speeds up the metabolism of the drug in order to eliminate it.
Pharmacodynamic or cellular dynamic tolerance means
nerve cells become less sensitive to the effects of the drug and even produce an antidote or antagonist to the drug
Reverse tolerance means
after the user had been tolerant to a drug for some time they become more sensitive to the drug
Behavioral conditioning tolerance means
the brain compensates for the effects of the drug with other non affected neurons
Cross tolerance means
as tolerance develops to one drug it develops to other drugs as well.
The biological adaptation of body organs to depend on drugs just to stay functional is
tissue dependence
Withdrawal is best defined as
the body's attemptt to rebalance itself after cessation of prolonged use of a psychoactive drug
Protracted withdrawal is defined as
environmental triggers or cues that cause a flashback or recurrence of withdrawal.
Post-acute withdrawal syndrome or PAWS is defined as
persistence of subtle emotional and physical withdrawal problems.
The human nervous system is made up of how many nerve cells
100 billion
Human nerve cells develop a network of how many connections
100 trillion
What do psychoactive drugs do to the nervous system
alter information sent to the brain from the environment, disrupt messages sent back to the various part of the body, disrupt thinking.
Name parts of the old or primal brain
cerebellum, mesocortex, brainstem
What are the functions of the old brain
basic emotions like anger, fear, hunger, lust, imprinting of survival memories, regulating respiration, heartbeat, and body temperature
The new brain consists of
cerebral cortex and cerebrum
The reward/reinforcement pathway functions to
provide feelings of satisfaction when a need is fulfilled, give a surge of relief when pain is diminished, signal other parts of the brain when satisfaction has been achieved.
Those with substance dependence disorders feel an intense need to continue drug use because
their stop switch in ineffective, their brain chemistry has been altered, their more/go switch is overactive
What are the phases of reward/reinforcement circuit
activation of the nucleus accumbens septi to do the drug or behavior again and again, anticipation of the drug or behavior which causes craving for the stimulus, activation of the orbitofrontal cortex which affects the decision making process for continued use of behavior.
The nervous system is made up of unique nerve cells known as
neurons
What are the essential parts of a nerve cell
axons and dendrites
Messenger brain chemicals that communicate between neurons are known as
neurotransmitters
Neurotransmitters are synthesized within the neuron and then stored in tiny sacs called
vesicles
Molecules that are produced or originate from within the body are best described as
endogenous
Which of the following is an exogenous substance? Serotonin, Dopamine, or Morphine
Morphine
The brain’s main inhibitory neurotransmitter is
GABA
Neurotransmitters activate neurons by slotting into a
compatible receptor
Excitatory neurotransmitters affect neurons by
increasing their firing or pulses
When a cell decreases the number of receptor sites to slow message transmission it is called
down regulation
Drugs that bind to receptors and mimic or facilitate the effects of neurotransmitters are
agonists
Habituation to drug use is
development of a definite pattern of use with no major negative consequences
Social/recreational drug use entails
drug seeking behavior but no established pattern and no negative consequences
What are the 3 name classifications for drugs
Street names, trade names, chemical names
True or False - Psychedelic drugs like LSD and psilocybin mushrooms are known as “all arounders”
True
Cocaine, methamphetamine, opium, and morphine are considered by the DEA to have a high abuse potential with severe psychic or physical dependence, and have limited medical use. They are considered to be which schedule

Schedule II drug