Heroin is a depressant, marijuana affects the cardiovascular system, cocaine interferes with dopamine transport, and morphine is a painkiller.
Heroin is a depressant and slows down body functions. Use of marijuana causes increased heartbeat and blood pressure (cardiovascular effects). Cocaine interferes with the transport of dopamine and causes build up of dopamine in the synapses. Morphine is a very effective sedative and painkiller.
Concepteffects of common drugs
Adolescence, Drug and Alcohol Abuse in past papers
2 questions from this chapter have appeared across 2 exam years.