T2 Parkinson's Module Tutorial
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Questions and Answers

Which structure is responsible for the initiation of voluntary movement?

  • Substantia nigra
  • Thalamus
  • Cerebral cortex
  • Basal ganglia (correct)
  • Which neurotransmitter is involved in the direct pathway of voluntary movement?

  • GABA
  • Dopamine
  • Substance P
  • Glutamate (correct)
  • In Parkinson's Disease, there is a reduction in the modulation of which neurotransmitter?

  • Glutamate
  • GABA
  • Serotonin
  • Dopamine (correct)
  • Which area of the brain forms a massive projection to clusters of cells in the pons, which in turn feed the cerebellum?

    <p>Frontal cortex</p> Signup and view all the answers

    Which nucleus in the thalamus acts as a relay for the motor loop through the cerebellum?

    <p>Ventral lateral nucleus</p> Signup and view all the answers

    What movement disorders result from damage to the cerebellum?

    <p>Ataxia, dysynergia, and dysmetria</p> Signup and view all the answers

    Which area of the cortex shows increased blood flow when a subject mentally rehearses finger movements without actually moving the fingers?

    <p>Supplementary Motor Area (SMA)</p> Signup and view all the answers

    Which area of the cortex registers increased blood flow when a subject actually moves their fingers after mentally rehearsing the movement?

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

    What is the organic basis of Parkinson's disease and how does dopa act to alleviate the symptoms?

    <p>Gradual degeneration of dopaminergic neurons in the substantia nigra; Dopa boosts dopamine synthesis in the dopaminergic neurons that remain in the substantia nigra</p> Signup and view all the answers

    Which structure is located in the pale region on handout page 4?

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

    Which structure is located in the dark region on handout page 4?

    <p>External capsule</p> Signup and view all the answers

    Which structure is not labeled on handout page 4?

    <p>Substantia nigra</p> Signup and view all the answers

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