TB9 BB Lecture 2; How do we control a movement?

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  • Created by: mint75
  • Created on: 02-05-16 14:56

1. What is the cerebellum involved in?

  • Balance and regulation of vestibular activity
  • Acquisition and control of skilled movements
  • Posture setting and maintenance
  • Acquisition and control of posture
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2. In terms of basal ganglia damage, which of these causes Parkinsons?

  • Unilateral damage to subthalamic nuclei. Unwanted movements
  • Lack of dopamine increases activity of direct pathway. Tonic inhibition of thalamus and less excitation of cortex. Difficulties starting and stopping movements
  • Degeneration of striatum. No inhibition of thalamus, resulting in overexcitability and unwanted movements

3. Which of these characterises athetosis?

  • One half of body unable to inhibit movements after execution
  • One side of body unable to stop spontaneous movements
  • One side of body constantly making ballistic uncontrolled movements
  • a

4. What is found within the substantia nigra?

  • Potassium
  • Melanin
  • Calcium
  • Actin

5. What connection type does glutamate facilitate?

  • Modulatory connections
  • Excitatory connections
  • Inhibitory connections


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