How drugs effect nervous system?
increase the amount of neurotransmitter
block a receptor site on a dendrites
prevent a neurotransmitter from having a synapse
imitate a neurotransmitter
classes of commonly abused drugs
Drugs that increase alertness and physical activity
found in cigarette and cigar smoke
increases the amount of dopamine released into synapse
constricts blood vessels rising blood pressure casing the heart to work harder
cigarette smoking has been linked to about 90% of all lung cancer
found in coffee, tea, soft drinks, and chocolate
it works by binding to adenosine receptors on neurons in the brain
makes users feel awake and alert
long term affect
reduction in brain mass, liver damage, stomach and intestinal ulcers, and high blood pressure
relaxation, sluggishness, impaired judgment, impaired coordination, and impaired reaction to time
Alcohol affects at least four different neurotransmitters, resulting in a feeling of relaxation and sluggishness
Inhalants might produce a short-term effect of intoxication, as well as nausea and vomiting. Death can occu
Long- term exposure to inhalants can cause memory loss, hearing loss, vision problems, peripheral nerve damage, and brain damage.
Inhalants are chemical fumes that have an influence on the nervous system
Cocaine abuse: disturbance in heart rhythm, heart attack, chest pain, respiratory failure, stroke, seizures, headaches, abdominal pain, and nausea.
example: amphetamine and cocaine
mood of action:
drugs that tend to slow down the central nervous system
lowering blood pressure
slow down heart rate
what is a drug?
A drug is a substance, natural or artificial, that alters the function of the body.