Other questions in this quiz

2. What chemical is released into the junction binding to receptors on the end plate to cause action potentials in the muscle surface membrane?

  • Actin
  • Calcium
  • Acetylcholine
  • Dystrophin

3. Where are central pattern generators found?

  • Somatosensory cortex
  • Brainstem
  • Spinal cord
  • PMC

4. What is characteristic of hemiballismus?

  • Half of body makes spontaneous movements
  • Half of body unable to make spontaneous movements
  • Half of body cannot inhibit movements
  • Half of body cannot control muscles or set posture/tone

5. What is 'recruitment', which creates graded contractions?

  • The average strength of the action potentials in the 'pool' of motorneurons for a given muscle
  • How many motorneurons and muscle fibres are activated at approximately the same time
  • The specific number of motor neurones and muscle fibres active at any given time
  • The specific number of alphaneurones active at any given time

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