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Fine Motor Skill Development: A Neuroscience Perspective

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1.  Which of the following accurately describes a motor unit involved in fine motor control?
  1. One alpha motor neuron innervates over 500 muscle fibers
  2. Multiple alpha motor neurons innervate a single muscle fiber
  3. One alpha motor neuron innervating 10 or fewer muscle fibers
  4. One lower motor neuron synapsing on an entire muscle group
2.  What role does the primary somatosensory cortex play in voluntary movement?
  1. It interprets tactile and proprioceptive information and informs motor regions.
  2. It only processes auditory and vestibular inputs related to motion.
  3. It generates motor commands for distal muscle groups.
  4. It coordinates involuntary muscle reflexes below the brainstem.
3.  What key function is attributed to the cerebellum in relation to movement?
  1. Initiates voluntary movement directly via the corticospinal tract
  2. Previews motor plan and adjusts movement through real-time proprioceptive input
  3. Suppresses motor reflexes from the brainstem
  4. Stores long-term motor memory through consolidation processes
4.  According to Dehaene’s theory, what is essential for building strong neural pathways in learning?
  1. Intense repetition over a short time frame
  2. Passive observation of the desired skill
  3. Daily rehearsal combined with sleep for consolidation
  4. Isolated motor skill practice without feedback
5.  According to Lane et al. (2019), what factor contributes to lasting functional brain changes in children during fine motor skill development?
  1. Engaging only in isolated fine motor exercises
  2. Avoiding error to prevent confusion
  3. Passive observation of movement
  4. Active engagement with varied and challenging items or toys