Exam 3: How Drugs Work in the Body and on the Mind

Metabolic tolerance occurs when receptors become less sensitive due to being stimulated repeatedly by a drug over time.

Atropine is a drug that __________.

The danger of potentiation is that since the drug seems to have no effect, the combined effect may be so powerful that it can become lethal.

L-Dopa is administered instead of dopamine to treat Parkinson's disease because __________.

Paint thinners, gasoline, and cleaning fluid are typically associated with which route of administration?

GABA deficiencies are associated with a decreased tendency toward epileptic seizures.

Potentiation involves one drug having no effect at all unless taken with another.

The gap between neurons is known as the __________.

Contrast additive and hyperadditive interactions. Give an example of each in terms of a specific drug combination.

An increased heart rate and a decreased rate of digestion are two signs of sympathetic activation.

A chemical substance can travel from lungs to the brain in __________.

Suppositories are typically administered __________.

The combination of morphine or heroin with naloxone or naltrexone is an example of __________.

Brain tissue is classified in sections: the hindbrain, the midbrain, and the forebrain.

Which of the following is NOT an injection technique?

The key factor that determines whether a drug passes through the blood-brain barrier is water solubility.

A problem inherent in all forms of injection involves __________.

A decline in the sensitivity of receptors underlies which kind of tolerance?

The elimination half-life index of a drug is determined by __________.

Sympathetic activation can result in all of the following, EXCEPT __________.