Drug addiction occurs when the central nervous system:
A)adjusts to the increased firing of neurons by reducing the number of membrane receptors in postsynaptic membranes
B)initiates new cell growth that depends on continual input of the drug
C)uses the drug as its sole neurotransmitter
D)stores the drug between neurons in the cerebral cortex for later use

Question

Quizplus · Accepted Answer

Drug addiction is characterized by the brain's adaptation to the drug's effects. This adaptation leads to changes in neuronal function, such as reducing the number of membrane receptors in postsynaptic neurons. As a result, the brain becomes less responsive to the drug and requires larger doses to achieve the same effect, leading to the cycle of addiction. Option B, C, and D are not accurate descriptions of drug addiction.

Drug Addiction Occurs When the Central Nervous System