Complete the following statements to assess your understanding of how drugs increase the effect of a neurotransmitter at a synapse. Not all choices will be used.
Most illicit drugs affect the nervous system by affecting the action of a particular neurotransmitter at ____________ in the brain. Drugs that increase the likelihood of neuron excitation are called ____________ , and those that decrease that likelihood are called ____________ .
Specific ways that a drug could increase the effect of a neurotransmitter (NT) at a synapse include: 1) causing the NT to leak out of a synaptic ____________ into the synaptic cleft; 2) preventing ____________ of the NT by the presynaptic membrane; and, 3) blocking an ____________ that normally breaks down the NT.
A specific example of a drug that affects a neurotransmitter in this way is cocaine, which potentiates the effects of the neurotransmitter ____________ by interfering with its reuptake from synaptic clefts. Researchers have found that this neurotransmitter is largely responsible for mood.
However, with continued use, ____________ amounts of the drug may be needed to create the same physiological outcome.
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- You're more right. Except on number 2 'release' is wrong but thank you for your help!
- May 05, 2018 at 9:15am
- You are welcome
- May 05, 2018 at 9:59am