The Intriguing World of Drug Action Mechanisms
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Questions and Answers

Which type of drug mechanism acts as a precursor to neurotransmitters and increases the number of neurotransmitters released per action potential?

  • Mechanism that speeds up synaptic vesicles' travel
  • Mechanism that prevents storage of neurotransmitters
  • Agonistic mechanism (correct)
  • Antagonistic mechanism
  • What happens when a drug inhibits the enzymes responsible for synthesizing precursor chemicals into neurotransmitters?

  • More neurotransmitters are released per action potential
  • More synaptic vesicles are packaged
  • Less stimulation of the postsynaptic receptor (correct)
  • Less synaptic vesicles are released
  • Which type of drug mechanism prevents the storage of neurotransmitters in synaptic vesicles?

  • Agonistic mechanism
  • Antagonistic mechanism that inhibits enzyme synthesis
  • Antagonistic mechanism that prevents storage (correct)
  • Mechanism that speeds up synaptic vesicles' travel
  • Which mechanism slows down the movement of neurotransmitter-carrying synaptic vesicles towards the membrane?

    <p>4</p> Signup and view all the answers

    Which mechanism stimulates the autoreceptor to stop the release of neurotransmitters?

    <p>5</p> Signup and view all the answers

    Which mechanism blocks autoreceptors, allowing for more neurotransmitters to be released?

    <p>8</p> Signup and view all the answers

    Which mechanism blocks the reuptake of neurotransmitters, increasing their availability in the synaptic cleft?

    <p>9</p> Signup and view all the answers

    Which type of drugs can either activate or block postsynaptic receptors?

    <p>Drugs that bind to a different site</p> Signup and view all the answers

    What is the term used to describe how strongly a chemical binds to a receptor site?

    <p>Affinity</p> Signup and view all the answers

    Which medication has a high affinity for opioid receptors and can effectively block the effects of opioids?

    <p>Naloxone</p> Signup and view all the answers

    Which mechanisms involve drugs stimulating or blocking postsynaptic receptors without the need for neurotransmitters?

    <p>Mechanism six and seven</p> Signup and view all the answers

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