Understanding Tetanus and Opisthotonus
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Questions and Answers

Which neurotransmitter is primarily affected in Parkinson's disease?

  • GABA
  • Acetylcholine
  • Serotonin
  • Dopamine (correct)
  • What is the mechanism of action of ropinirole in Parkinson's disease?

  • Monoamine oxidase inhibition
  • Dopamine receptor agonist (correct)
  • GABA reuptake inhibitor
  • Acetylcholinesterase inhibitor
  • What is the main consequence of tetanospasmin binding to the synapse membrane?

  • Rigidity due to glycine release blockage (correct)
  • Muscle atrophy due to decreased calcium levels
  • Sedation due to glutamate inhibition
  • Hyperactivity due to dopamine release
  • Why did Don develop a strong interest in gambling after starting ropinirole?

    <p>Dopamine receptor agonists can cause impulsive behavior</p> Signup and view all the answers

    Which receptor type does not contain ion channels but may use a second messenger system to open nearby ion channels?

    <p>G-protein coupled receptors</p> Signup and view all the answers

    What is the main function of the VTA in the brain?

    <p>Reward, motivation, and addiction</p> Signup and view all the answers

    What is the function of monoamine oxidase inhibitors?

    <p>Preventing dopamine breakdown at synapse</p> Signup and view all the answers

    Which neurotransmitter is responsible for excitotoxicity when released excessively?

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

    Which type of antagonist binds to a different site than the endogenous ligand, weakening the signal output?

    <p>Noncompetitive antagonist</p> Signup and view all the answers

    What class of neurotransmitters includes Glutamate, Aspartate, and Glycine?

    <p>Amino acids</p> Signup and view all the answers

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