Brain Stem I

43 Questions | Total Attempts: 3240

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Brain Stem I

This is Dr. Leo's brainstem I lecture. Hopefully this helps. Goodluck!


Questions and Answers
  • 1. 
    Which Cranial nerve(s) come from the midbrain?
    • A. 

      CN IV

    • B. 

      CN V

    • C. 

      CN III

    • D. 

      CN X

    • E. 

      CN VI

  • 2. 
    Cranial nerve V comes from what part of the brain stem?
    • A. 

      Midbrain

    • B. 

      Pons

    • C. 

      Medulla

    • D. 

      Cerebellum

    • E. 

      Spine

  • 3. 
    Which 2 cranial nerves come from the pontomedullary junction?
    • A. 

      I & II

    • B. 

      II & IV

    • C. 

      IX & V

    • D. 

      X & XII

    • E. 

      VI & VII

  • 4. 
    Where do Cranial nerves 9,10 & 11 originate from?
    • A. 

      Medulla

    • B. 

      Pons

    • C. 

      Midbrain

    • D. 

      Cortex

    • E. 

      Spine

  • 5. 
    • A. 

      I

    • B. 

      II

    • C. 

      III

    • D. 

      IV

    • E. 

      V

  • 6. 
    Where is the nuclei for Cranial nerve 3 located?
    • A. 

      Midbrain

    • B. 

      Pons

    • C. 

      Medulla

    • D. 

      Cortex

  • 7. 
    Edinger Wesphal nuclei has fibers of what kind?
    • A. 

      Postganglionic parasympathetic

    • B. 

      Preganglionic parasympathetic

    • C. 

      Postganglion sympathetic

    • D. 

      Preganglionic sympathetic

  • 8. 
    This cranial nerve exits from the dorsal side of the brain?
    • A. 

      CN 1

    • B. 

      CN 2

    • C. 

      CN 3

    • D. 

      CN 4

    • E. 

      CN 5

  • 9. 
    Cranial nerve 4 is located inferior to what landmark?
    • A. 

      Superior colliculus

    • B. 

      Inferior colliculus

    • C. 

      Lateral colliculus

    • D. 

      Medial colliculus

  • 10. 
    The lower motor neuron of which motor neuron decussates?
    • A. 

      I

    • B. 

      II

    • C. 

      III

    • D. 

      IV

  • 11. 
    Cranial nerve 6 passes directly through which tract?
    • A. 

      Corticospinal

    • B. 

      Spinothalamic

    • C. 

      Dorsal columns

  • 12. 
    Where is the facial colliculus located?
    • A. 

      Lateral ventricles

    • B. 

      3rd ventricle

    • C. 

      Aqueduct

    • D. 

      4th ventricle

    • E. 

      Thalami

  • 13. 
    What composes the facial colliculus?
    • A. 

      Facial nerve

    • B. 

      Optic nerve

    • C. 

      Trigeminal nucleus

    • D. 

      Abducens nucleus

    • E. 

      Facial nucleus

  • 14. 
    What nerve wraps around the cranial nerve 6 before it exits the brain stem?
    • A. 

      CN 5

    • B. 

      CN 7

    • C. 

      CN 9

    • D. 

      CN 10

  • 15. 
    Action of the inferior oblique eye muscle
    • A. 

      Out & up

    • B. 

      Out & down

    • C. 

      In & up

    • D. 

      In & down

  • 16. 
    Action of the superior oblique eye muscle
    • A. 

      Out & up

    • B. 

      Out & down

    • C. 

      In & up

    • D. 

      In & down

  • 17. 
    Action of the inferior rectus eye muscle
    • A. 

      Out & up

    • B. 

      Out & down

    • C. 

      In & up

    • D. 

      In & down

  • 18. 
    Action of the superior rectus muscle
    • A. 

      Out & up

    • B. 

      Out & down

    • C. 

      In & up

    • D. 

      In & down

  • 19. 
    To test the superior rectus muscle on a patient what would you ask them to do?
    • A. 

      Look out & up

    • B. 

      Look out & down

    • C. 

      Look in & up

    • D. 

      Look in & down

  • 20. 
    To test the inferior oblique eye muscle in a patient you would ask them to look...
    • A. 

      Out & down

    • B. 

      Out & up

    • C. 

      In & down

    • D. 

      In & up

  • 21. 
    To test the Inferior rectus eye muscle in your patient you would ask them to look...
    • A. 

      Out & up

    • B. 

      Out & down

    • C. 

      In & up

    • D. 

      In & down

  • 22. 
    To test the superior oblique eye muscle in a patient you would ask them to look...
    • A. 

      Out & up

    • B. 

      Out & down

    • C. 

      In & up

    • D. 

      In & down

  • 23. 
    A patient presents with an eye the looks down and out. What cranial nerve lesion would you suspect
    • A. 

      CN I

    • B. 

      CN II

    • C. 

      CN III

    • D. 

      CN IV

  • 24. 
    A patient walks into your office and you notice that he is tilting his head to one side. What cranial nerve is impaired?
    • A. 

      CN 2

    • B. 

      CN 4

    • C. 

      CN 6

    • D. 

      CN 8

  • 25. 
    What lesion would cause the eye to deviate medially?
    • A. 

      Lesion to CN 6

    • B. 

      Lesion to the Spinothalamic tract

    • C. 

      Lesion to CN 3

    • D. 

      Lesion to the Vagus nerve