Drugs can influence the nervous system by blocking, inhibiting the release, or

f you give a mimic and it DOES NOT function as expected then you can make the inference that something is wrong. In this case it sounds like the mimic would be used to confirm that another drug being given to the individual is thus blocking the receptor or the release of the neurotransmitter is being blocked. Let's just say a patient is getting a drug known to block a certain neurotransmitter and you want to make certain that it is doing that and is not caused by something else. So if you give the mimic and the mimic works then the cause is not from the drug or if it is from the drug the mimic will not work.

Answer can be found in the attachment