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

The reticular formation is located in the __________.

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.

The limbic system and hypothalamus are two structures of the brain that "overhang" the cerebral cortex.

Dopamine is more fat-soluble than L-dopa.

It is estimated that genetics account for about ___ percent of the inclination to begin smoking,and for about ___ percent of the ability to quit.

Two examples of hyperadditive combinations are synergism and potentiation.

Athletes can experience a "runner's high," or euphoria,during strenuous physical activity due to elevated levels of_______.

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

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

Midbrain is to sensory and motor reflexes as forebrain is to __________.

Reuptake refers to the "returning back" of the neurotransmitter to the __________.

More than 80 percent of the cerebral cortex is referred to as __________.

If you wanted to facilitate the passage of a drug across the blood-brain barrier,what quality would you want the drug to have? Provide an example of two extreme situations with respect to passage across the blood-brain barrier.

An example of an antagonistic effect would be if Drug A had an effect of 5 and Drug B had an effect of 3,but the combination of the two drugs together resulted in an effect of 15.

Smoking is a method of inhalation that depends upon __________.

Which response would be a result of sympathetic activation?

An acceleration or deceleration of the heart rate is considered a ______ response.

A man using barbiturates to hide an addiction is an example of __________.

A lower proportion of water in a woman relative to an equivalently weighted man __________.

If a drug is taken at noon and an effect is detected at 12:05 but no longer detected by 1:00,it is reasonable to assume that the latency period occurred at __________.