Via small openings in the tongue epithelium, called taste pores, parts of the food dissolved in saliva come into contact with the taste receptors. These are located on top of the taste receptor cells that constitute the taste buds. The taste receptor cells send information detected by clusters of various receptors and ion channels to the gustatory areas of the brain via the seventh, ninth and tenth cranial nerves. On average, the human tongue has 2,000â8,000 taste buds.
Harm reduction is a technique used to treat drug addiction that focuses on preventing harm to addicts before preventing use of drugs or alcohol.
The definition of drug addiction contains aspects of the drug abuse definition in that the user is experiencing negative consequences from drug use and refuses to quit using the drug.ather, it focuses on the pattern of drug use and the effects drugs are having on a user's life. Drug abuse and addiction takes place over time, but the definition of drug abuse specifically requires that drugs have negative effects on the user's life over a 12-month period.