Cranial Nerves and Their Nuclei
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28 questions
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- Q1Which nucleus is responsible for parasympathetic axons that innervate the sphinceter pupillae and ciliary muscles?Trochlear nucleusAbducens nucleusOculomotor nucleusEdinger-Westphal nucleus30s
- Q2What is the primary functional component of the 4th cranial nerve?Abduction of the eyeIntorsion and depression of the eyeExtorsion and elevation of the eyeTo excite the levator palpebrae muscles30s
- Q3First order neurons synapsing in the spinal nucleus are conveying all of the following information except:TemperaturePainLight touchDiscriminative touch30s
- Q4Bella’s eye is medially adducted and she is unable to abduct her eye. Where is the lesion?CN3CN6CN4CN230s
- Q5Sensory axons of the glossopharyngeal nerves carry all of the following types of information from the ganglia of IX to nucleus solitarius except:TasteBalance and motionBlood Oxygen LevelsBlood pressure30s
- Q6Cranial nerve XI and X are the only cranial nerves with significant distribution of innervation outside of the head and neck.FALSETRUE30s
- Q7Which cranial nerve is responsible for the sensation of taste in the anterior 2/3 of the tongue, and hard and soft palates?CN9CN7CN5CN330s
- Q8The somatic motor neurons of the Glossopharyngeal nerve originate in which nucleus?Spinal NucleusInferior Salivatory NucleusNucleus AmbiguusAccessory Nucleus30s
- Q9The Vagus Nerve contributes efferent fibers to all of the following except:Palatine muscles (except the Tensor Veli Palatine)Striated constrictor muscles of the pharynxStriated muscle in the upper half of the esophagusIntrinsic muscles of the tongue30s
- Q10Which of the following are considered “true” cranial nerves?CN II- XICN- III-XIICN II-XI30s
- Q11The optic tracts connect to what structure in the thalamus?Medial Geniculate nucleusVentral Posterolateral nucleusLateral Geniculate nucleus30s
- Q12Which muscle is not innervated by CN III?Medial rectusLateral rectusInferior oblique30s
- Q13Where is CN III located?All of the aboveMidbrainAbove the ponsInterpeduncular fossa30s
- Q14What is the function of the Ciliary muscles?Constricts the pupilLifts the eyelidFocuses the lens30s
- Q15What is the only CN that exits dorsally from the brainstem?TrigeminalTrochlearFacial30s