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Cranial Nerves and Their Nuclei

Quiz by OASIS

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28 questions
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  • Q1
    Which nucleus is responsible for parasympathetic axons that innervate the sphinceter pupillae and ciliary muscles?
    Trochlear nucleus
    Abducens nucleus
    Oculomotor nucleus
    Edinger-Westphal nucleus
    30s
  • Q2
    What is the primary functional component of the 4th cranial nerve?
    Abduction of the eye
    Intorsion and depression of the eye
    Extorsion and elevation of the eye
    To excite the levator palpebrae muscles
    30s
  • Q3
    First order neurons synapsing in the spinal nucleus are conveying all of the following information except:
    Temperature
    Pain
    Light touch
    Discriminative touch
    30s
  • Q4
    Bella’s eye is medially adducted and she is unable to abduct her eye. Where is the lesion?
    CN3
    CN6
    CN4
    CN2
    30s
  • Q5
    Sensory axons of the glossopharyngeal nerves carry all of the following types of information from the ganglia of IX to nucleus solitarius except:
    Taste
    Balance and motion
    Blood Oxygen Levels
    Blood pressure
    30s
  • Q6
    Cranial nerve XI and X are the only cranial nerves with significant distribution of innervation outside of the head and neck.
    FALSE
    TRUE
    30s
  • Q7
    Which cranial nerve is responsible for the sensation of taste in the anterior 2/3 of the tongue, and hard and soft palates?
    CN9
    CN7
    CN5
    CN3
    30s
  • Q8
    The somatic motor neurons of the Glossopharyngeal nerve originate in which nucleus?
    Spinal Nucleus
    Inferior Salivatory Nucleus
    Nucleus Ambiguus
    Accessory Nucleus
    30s
  • Q9
    The Vagus Nerve contributes efferent fibers to all of the following except:
    Palatine muscles (except the Tensor Veli Palatine)
    Striated constrictor muscles of the pharynx
    Striated muscle in the upper half of the esophagus
    Intrinsic muscles of the tongue
    30s
  • Q10
    Which of the following are considered “true” cranial nerves?
    CN II- XI
    CN- III-XII
    CN II-XI
    30s
  • Q11
    The optic tracts connect to what structure in the thalamus?
    Medial Geniculate nucleus
    Ventral Posterolateral nucleus
    Lateral Geniculate nucleus
    30s
  • Q12
    Which muscle is not innervated by CN III?
    Medial rectus
    Lateral rectus
    Inferior oblique
    30s
  • Q13
    Where is CN III located?
    All of the above
    Midbrain
    Above the pons
    Interpeduncular fossa
    30s
  • Q14
    What is the function of the Ciliary muscles?
    Constricts the pupil
    Lifts the eyelid
    Focuses the lens
    30s
  • Q15
    What is the only CN that exits dorsally from the brainstem?
    Trigeminal
    Trochlear
    Facial
    30s

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