Brain Stem I

43 Questions | Total Attempts: 1575

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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

  • 26. 
    Patient comes in with a deviated jaw. A lesion to what cranial nerve will cause this lateral deviation?
    • A. 

      CN 1

    • B. 

      CN 2

    • C. 

      CN 3

    • D. 

      CN 4

    • E. 

      CN 5

  • 27. 
    The nucleus ambiguus is responsible for the muscles of the...
    • A. 

      Pharynx

    • B. 

      Tongue

    • C. 

      Larynx

    • D. 

      Palate

  • 28. 
    Nucleus ambiguus goes to which cranial nerves?
    • A. 

      CN 8

    • B. 

      CN 9

    • C. 

      CN 10

    • D. 

      CN 11

    • E. 

      Cn 12

  • 29. 
    This cranial nerve's fibers exit from between the inferior olive & pyramid
    • A. 

      CN 5

    • B. 

      CN 7

    • C. 

      CN 9

    • D. 

      CN 10

    • E. 

      CN 12

  • 30. 
    Corticobulbar is similar to the corticospinal tract except for what fact?
    • A. 

      Its tract also contains sensory fibers

    • B. 

      It has no point on decussation

    • C. 

      It decussates at the level of the CN nuclei

    • D. 

      It decussates at the basis pontis

  • 31. 
    If CN is damaged on right side before the decussation what would be the symptoms and how would the tongue deviate?
    • A. 

      Symptoms ipsilateral, tongue contralateral

    • B. 

      Symptoms ipsilateral, tongue ipsilateral

    • C. 

      Symptoms contralateral, tongue ipsilateral

    • D. 

      Symptoms contralateral, tongue contralateral

  • 32. 
    Mixed motor problems where a patient presents with contralateral UMN deficient & ipsilateral tongue problem. You would expect to find the lesion where?
    • A. 

      Pons

    • B. 

      Medulla

    • C. 

      Midbrain

    • D. 

      Spinal cord

  • 33. 
    Mixed motor problem in the medullal is referred to as...
    • A. 

      Superior hemiplegia

    • B. 

      Superior paraplegia

    • C. 

      Inferior hemiplegia

    • D. 

      Middle hemiplegia

  • 34. 
    Patient presents with contralateral UMN deficient with CN 6 ipsilateral palsy
    • A. 

      Middle alternating hemiplegia

    • B. 

      Superior alternating hemiplegia

    • C. 

      Inferior alternating hemiplegia

  • 35. 
    Where is the above lesion located?
    • A. 

      Midbrain

    • B. 

      Pons

    • C. 

      Medulla

    • D. 

      Cortex

  • 36. 
    How does a Superior Alternating hemiplegia present?
    • A. 

      Contralateral UMN, ipsilateral CN 6 palsy

    • B. 

      Contralateral UMN ipsilateral CN 12 palsy

    • C. 

      Contralateral UMN ipsilateral CN 3 palsy

    • D. 

      Contralateral UMN ipsilateral CN 6 palsy

  • 37. 
    Corticobulbar is __________ & corticospinal is ____________
    • A. 

      Bilateral, bilateral

    • B. 

      Bilateral, contralateral

    • C. 

      Contralateral, contralateral

    • D. 

      Contralateral, bilateral

  • 38. 
    What are the nuclei for the trigeminal system?
    • A. 

      Spinal trigeminal

    • B. 

      Trigeminal

    • C. 

      VTT

    • D. 

      Main sensory nucleus

    • E. 

      Mesocephalic

  • 39. 
    This nucleus does pain & temp for V1,V2, V3 and is equivalent to the dorsal horn.
    • A. 

      VTT

    • B. 

      Main sensory nucleus

    • C. 

      Spinal trigeminal

    • D. 

      Mesocephalic

  • 40. 
    The Main sensory nucleus is responsible for what?
    • A. 

      Pain

    • B. 

      Temp

    • C. 

      Proprioception

    • D. 

      Touch

  • 41. 
    This trigeminal nucleus ascends to the thalamus in the trigeminal system
    • A. 

      Spinal trigeminal

    • B. 

      VTT

    • C. 

      Main sensory nucleus

    • D. 

      Mesocephalic

  • 42. 
    A lesion to this trigeminal system nucleus causes ipsilateral symptoms
    • A. 

      Spinal trigeminal

    • B. 

      VTT

    • C. 

      Main sensory

    • D. 

      Mesocephalic

  • 43. 
    A lesion to this trigeminal system nucleus will cause contralateral symptoms
    • A. 

      Spinal trigeminal

    • B. 

      VTT

    • C. 

      Main sensory

    • D. 

      Mesocephalic