Drugs and the Brain 09\/02\/2014.docx - DRUGS AND THE BRAIN First Assignment Due in section of next week Find a news report appearing within the past two

Drugs and the Brain 09/02/2014.docx - DRUGS AND THE BRAIN...

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DRUGS AND THE BRAIN First Assignment: Due in section of next week Find a news report appearing within the past two months about the topic of psychoactive drugs and society. Write a short summary description of the news item… Notes: George Bush National Drug Policy Video Paracelsus (1493-1541) “All substances are poisons; there is none which is not a poison. The difference between a poison and a remedy is in the dose.” The Five Pound Gem: No real understanding on what happens in the brain The brain is of central importance Drug-Body-Blood-Brain *All diagrams are currently on bspace Hepatic Portal System (hepatic means liver, Portal means local) anything absorbed through digestive system goes into the liver. -The job of the liver is to detoxify the blood and keep it healthy -All blood flows through the liver Routes of administration/entry -oral digestive -enters stomach and intestins -enters liver time to brain= 20 minutes -other routes of entry -bypass digestive system -often increases speed of onset
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