Elements Of Motor Function

47 Questions | Total Attempts: 61

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Element Quizzes & Trivia

Motor and Central Systems pg. 115-129


Questions and Answers
  • 1. 
    Choose the correct heirarchy that is most correct for motor function (low to high)
    • A. 

      Brainstem

    • B. 

      Spinal cord

    • C. 

      Motor cortex

    • D. 

      Spinal cord< brainstem

  • 2. 
    Reflexes require concscious input from the brain
    • A. 

      True

    • B. 

      False

  • 3. 
    Which of the following reflexes requires the most synpases?
    • A. 

      Stretch Reflex

    • B. 

      Tendon Refelx

    • C. 

      Flexor/Withdrawal Reflex

  • 4. 
    Which pairs of reflexes work in opposition to one another?
    • A. 

      Stretch reflex and tendon reflex

    • B. 

      Tendon reflex and flexor reflex

    • C. 

      Flexor reflex and stretch reflex

  • 5. 
    What tracts are involved in the vestibular system at the level of the brainstem?
    • A. 

      Lateral Vestibulospinal Tract

    • B. 

      Medial Vestibulospinal Tract

    • C. 

      Vestibulo-Ocular Tract

    • D. 

      All of the above

  • 6. 
    The lateral vestibulospina tract is mainly for posture of the ______ wherease the medial vestibulospinal tract is for posture of the ______
    • A. 

      Body; head

    • B. 

      Hands; feet

    • C. 

      Feet; hands

    • D. 

      Head; body

  • 7. 
    What is the main function of the reticular formation?
    • A. 

      Overall arousal

    • B. 

      Muscle tone

    • C. 

      Eye movements

    • D. 

      Autonomic control

    • E. 

      All of the above

  • 8. 
    The vestibulo-ocular reflex requires visual input to function.
    • A. 

      True

    • B. 

      False

  • 9. 
    The vestibulo-ocular reflex works via the medial longitudinal fasiculus
    • A. 

      True

    • B. 

      False

  • 10. 
    How does the reticular formation influence muscle tone?
    • A. 

      Provides overall inhibition of motor neurons

    • B. 

      Sets sensitivity level for motor neurons

    • C. 

      Provides overall excitability of motor neurons

    • D. 

      More than one of the above

  • 11. 
    For the reticular formation autonomic control, it receives inputs from ______ and _____ and sends outputs to ______ and ______
    • A. 

      Solitary nucleus and hypothalamus; vagal nucleus, thoracic spinal cord

    • B. 

      Vagal nucleus, thoracic spinal cord; solitary nucleus and hypothalamus

    • C. 

      Vagal nucleus and solitary nucleus; thoracic spinal cord and hypothalamus

  • 12. 
    The inputs to the cerebellum include ________ and _______
    • A. 

      Mossy fibers and deep nuclei of cortex

    • B. 

      Climbing fibers and deep nuclei of cortex

    • C. 

      Mossy fibers and climbing fibers

  • 13. 
    Climbing fibers input more specific info to the cerebellum compared to the mossy fibers
    • A. 

      True

    • B. 

      False

  • 14. 
    The vestibular system at the brainstem level interacts with:
    • A. 

      Reticular formation

    • B. 

      Cerebellum

    • C. 

      Spinal cord

    • D. 

      Eye muscles

    • E. 

      All of the above

  • 15. 
    What are the 3 layers of the cerebellar cortex?
    • A. 

      Molecular layer, granular layer, purkinje cell layer

    • B. 

      Molecular layer, granular layer, climbing fiber layer

    • C. 

      Granular layer, golgi cell layer, medullary layer

  • 16. 
    Mossy fibers originate from:
    • A. 

      Vestibular nuclei

    • B. 

      Reticular formation

    • C. 

      Spinal cord

    • D. 

      Lateral cuneate nucleus

    • E. 

      Pontine nuclei

  • 17. 
    Purkinje cells receive 8,000-20,000 parallel fiber inputs
    • A. 

      True

    • B. 

      False

  • 18. 
    Climbing fibers in the cerebellum send info to:
    • A. 

      Purkinje cells

    • B. 

      Mossy fibers

    • C. 

      Stellate cells

    • D. 

      Basket cells

  • 19. 
    The Purkinje cells send ______ output to the deep nuclei cells using ______.
    • A. 

      Excitatory; glutamate

    • B. 

      Inhibitory; GABA

    • C. 

      Excitatory; acetylcholine

  • 20. 
    The vestibular division of the cerebellum is involved in:
    • A. 

      Balance

    • B. 

      Eye movements

    • C. 

      Muscle tone

    • D. 

      Motor rhymthms

    • E. 

      More than one of the above

    • F. 

      All of the above

  • 21. 
    The spinal division of the cerebellum is NOT involved with:
    • A. 

      Muscle tone

    • B. 

      Motor rhythms

    • C. 

      Walking

    • D. 

      All of the above

    • E. 

      None of the above

  • 22. 
    The cortical division of the cerebellum is involved with:
    • A. 

      Timing and coordination of complex motor acts

    • B. 

      Planning and prediction of rapid movements

    • C. 

      Stats and stops

    • D. 

      All of the above

  • 23. 
    Cerebellar Diseas is characterized by which of the following; choose all that apply
    • A. 

      Incoordination

    • B. 

      Ataxia of gait (uncoordinated walking)

    • C. 

      Intention tremor (tremor when you make a movement)

    • D. 

      Dysdiadochokinesia (impaired rapid alternating movements)

    • E. 

      Dysarthria (impairment of motor aspets of speech)

    • F. 

      Resting tremor (tremor with not moving)

    • G. 

      Nystagmus

  • 24. 
    Mossy fibers provide ______ input to the deep nuclei cells. Climbing fibers provide _____ input to the deep nuclei cells. Purinkje fibers provide _____ input to the deep nuclei cells
    • A. 

      Inhibitory; inhibitory; excitatory

    • B. 

      Inhibitory; excitatory; excitatory

    • C. 

      Excitatory; excitatory; inhibitory

    • D. 

      All provide inhibitory input to account for the negative sensory feedback

  • 25. 
    What structure(s) make up the basal ganglia?
    • A. 

      Caudate

    • B. 

      Putamen

    • C. 

      Amygdala

    • D. 

      Globus pallidus

    • E. 

      More than one of the above