front 1 Which junction marks the rostral limit of the brainstem? A. Pontomedullary junction | back 1 C. Midbrain-diencephalic junction |
front 2 The midbrain joins the pons at which junction? A. Pontomesencephalic junction | back 2 A. Pontomesencephalic junction |
front 3 The pons meets the medulla at the: A. Midbrain-diencephalic junction | back 3 D. Pontomedullary junction |
front 4 A lesion at the caudal brainstem near the foramen magnum is located at the: A. Pontomedullary junction | back 4 B. Cervicomedullary junction |
front 5 The paired dorsal midbrain elevations are the: A. Superior and inferior colliculi | back 5 A. Superior and inferior colliculi |
front 6 The interpeduncular fossa lies between the: A. Inferior olivary nuclei | back 6 D. Cerebral peduncles |
front 7 A patient develops ptosis, mydriasis, and a “down and out” eye from vascular compression of CN III. The nerve normally passes between the: A. AICA and PICA | back 7 B. PCA and SCA |
front 8 Which cranial nerve uniquely exits dorsally from the brainstem? A. CN III | back 8 C. CN IV |
front 9 The abducens nerve exits at the: A. Ventral pontomedullary junction | back 9 A. Ventral pontomedullary junction |
front 10 The cerebellopontine angle is the exit region for: A. CN III and CN IV | back 10 C. CN VII, VIII, and IX |
front 11 Which set exits ventrolaterally from the pontomedullary junction and rostral medulla? A. III, IV, V, VI | back 11 B. VII, VIII, IX, X |
front 12 A lesion of the facial colliculus most directly involves the: A. Hypoglossal nucleus and XII fibers | back 12 D. Abducens nucleus and VII fibers |
front 13 The hypoglossal trigone and vagal trigone overlie the: A. XII nucleus and X dorsal motor nucleus | back 13 A. XII nucleus and dorsal motor X |
front 14 The point where the fourth ventricle narrows into the spinal cord: A. Aqueduct | back 14 C. Obex |
front 15 In adults (unlike in kids) the central canal distal to the obex is usually: A. Widely patent | back 15 B. Closed |
front 16 In the rostral medulla, bulges lateral to the pyramids are the: A. Inferior olivary nuclei | back 16 A. Inferior olivary nuclei |
front 17 On the dorsal surface of the caudal medulla, one expects to see: A. Inferior olives and pyramids | back 17 D. Posterior columns and nuclei |
front 18 The spinal accessory nerve arises from multiple rootlets along the: A. Rostral medulla | back 18 C. Upper cervical cord |
front 19 The hypoglossal nerve exits: A. Lateral to olive | back 19 B. Between pyramid and olive |
front 20 The oculomotor nerve emerges ventrally from the: A. Optic canal | back 20 D. Interpeduncular fossa |
front 21 The olfactory nerves traverse the: A. Cribriform plate | back 21 A. Cribriform plate |
front 22 The optic nerve passes through the: A. Cribriform plate | back 22 C. Optic canal |
front 23 Which set enters the orbit through the superior orbital fissure? A. II, III, IV, V2 | back 23 B. III, IV, VI, V1 |
front 24 A foramen magnum mass compressing the caudal brainstem would most likely be near the: A. Superior colliculus | back 24 D. Pyramidal decussation |
front 25 The ventral surface of the midbrain is formed chiefly by the: A. Cerebral peduncles | back 25 A. Cerebral peduncles |
front 26 Which foramen normally transmits CN VII out to the muscles of facial expression? A. Jugular foramen | back 26 D. Stylomastoid foramen |
front 27 CN VII and CN VIII both leave the cranial cavity together through the: A. Jugular foramen | back 27 C. Internal auditory meatus |
front 28 A vestibular schwannoma in the auditory canal would first affect a nerve that innervates the: A. Tongue intrinsic muscles | back 28 B. Inner ear |
front 29 CN VIII primarily innervates structures located: A. Within temporal bone | back 29 A. Within temporal bone |
front 30 Which set of cranial nerves traverses the jugular foramen? A. VII, VIII, IX | back 30 B. IX, X, XI |
front 31 A patient with dysphagia, hoarseness, and weak SCM after a skull base lesion most likely has compression at the: A. Hypoglossal canal | back 31 C. Jugular foramen |
front 32 The hypoglossal nerve exits the skull via the: A. Jugular foramen | back 32 B. Hypoglossal canal |
front 33 The hypoglossal canal lies just anterior to the: A. Optic canal | back 33 D. Foramen magnum |
front 34 Which grouping contains only somatic motor cranial nerve nuclei? A. III, IV, VI, XI, XII | back 34 A. III, IV, VI, XI, XII |
front 35 Which muscle group is innervated by nuclei associated embryologically with occipital somites? A. Muscles of mastication | back 35 B. Extraocular and tongue muscles |
front 36 Visceral motor cranial nuclei are divided into which two columns? A. Somatic sensory, branchial motor | back 36 B. Parasympathetic, branchial motor |
front 37 Motor Nucleus of V (Trigeminal), Facial Nucleus (VII), and Nucleus Ambiguus (IX, X, XI): A. Somatic sensory | back 37 B. Branchial motor |
front 38 A lesion causing weak jaw closure most directly involves which branchial motor nucleus? A. Facial nucleus | back 38 C. Trigeminal motor nucleus |
front 39 The nucleus ambiguus contributes branchial motor fibers to: A. III and VII and XI | back 39 B. IX and X and XI |
front 40 Which muscle group is innervated by branchial motor nuclei? A. Iris sphincter, ciliary muscle | back 40 D. Pharynx and larynx |
front 41 Branchial motor nuclei innervate all of the following except: A. Middle ear muscles | back 41 D. Extraocular muscles |
front 42 Which nucleus provides preganglionic parasympathetic fibers through CN III? A. Superior salivatory nucleus | back 42 C. Edinger-Westphal nucleus |
front 43 Which nuclei are parasympathetic? A. V motor and VII | back 43 B. III, VII, IX, X |
front 44 A lesion causing impaired salivation through CN IX most likely involves the: A. Superior salivatory nucleus | back 44 C. Inferior salivatory nucleus |
front 45 Parasympathetic cranial nuclei send what type of fibers to peripheral targets? A. Postganglionic sympathetic fibers | back 45 B. Preganglionic parasympathetic fibers |
front 46 Which nucleus receives primarily taste input from CN VII? A. Caudal nucleus solitarius | back 46 C. Rostral nucleus solitarius |
front 47 The gustatory nucleus is another name for the: A. Rostral nucleus solitarius | back 47 A. Rostral nucleus solitarius |
front 48 Taste afferents to the rostral nucleus solitarius arise mainly from: A. CN V | back 48 B. CN VII |
front 49 The caudal nucleus solitarius is chiefly concerned with: A. Tongue proprioception | back 49 C. Cardiorespiratory regulation |
front 50 Visceral afferents to the caudal nucleus solitarius travel primarily in: A. CN V and VII | back 50 C. CN IX and X |
front 51 Which sensory modality is mediated by trigeminal sensory nuclei? A. Taste from epiglottis | back 51 D. Facial pain and temperature |
front 52 Which set includes only mixed cranial nerves? A. I, II, VIII | back 52 C. V, VII, IX, X |
front 53 A patient has isolated parasympathetic loss to the iris and ciliary muscle. Which peripheral ganglion is implicated? A. Geniculate ganglion | back 53 C. Ciliary ganglion |
front 54 The ciliary ganglion is associated with which cranial nerve? A. CN II | back 54 B. CN III |
front 55 Which structure contains primary sensory neuron cell bodies for the face, mouth, sinuses, and meninges? A. Geniculate ganglion | back 55 C. Trigeminal ganglion |
front 56 The trigeminal ganglion is the peripheral ganglion of: A. CN III | back 56 B. CN V |
front 57 Which set contains only peripheral ganglia of CN VII? A. Ciliary, trigeminal, geniculate | back 57 B. Geniculate, submandibular, sphenopalatine |
front 58 A lesion in the internal auditory meatus could affect both facial expression and hearing because it transmits: A. CN VII and VIII | back 58 A. CN VII and VIII |
front 59 A patient has dry eyes and dry nasal mucosa after a facial nerve parasympathetic lesion. Which ganglion is most directly involved? A. Otic ganglion | back 59 C. Sphenopalatine ganglion |
front 60 A lesion affecting facial parasympathetics causes reduced secretion from the submandibular and sublingual glands. Which ganglion is affected? A. Otic ganglion | back 60 B. Submandibular ganglion |
front 61 A patient loses taste from the anterior two-thirds of the tongue and also has decreased sensation near the outer ear. Which ganglion is most likely involved? A. Spiral ganglion | back 61 B. Geniculate ganglion |
front 62 Which pair are the peripheral ganglia of CN VIII? A. Spiral and otic | back 62 C. Spiral and Scarpa's |
front 63 A patient with isolated sensorineural hearing loss has damage to primary sensory neuron cell bodies in the: A. Spiral ganglion | back 63 A. Spiral ganglion |
front 64 A patient with severe vertigo has damage to the peripheral ganglion containing primary vestibular sensory neurons. Which ganglion is this? A. Spiral ganglion | back 64 C. Scarpa's ganglion |
front 65 Which structure is a peripheral ganglion of the glossopharyngeal nerve? A. Ciliary ganglion | back 65 B. Otic ganglion |
front 66 Which list includes all peripheral ganglia associated with CN IX? A. Otic, superior, inferior glossopharyngeal | back 66 A. Otic, superior, inferior glossopharyngeal |
front 67 Parasympathetic fibers to the parotid gland synapse in the: A. Submandibular ganglion | back 67 B. Otic ganglion |
front 68 A patient with diminished parotid secretion has a lesion involving which ganglion? A. Sphenopalatine ganglion | back 68 B. Otic ganglion |
front 69 Primary sensory neuron cell bodies for sensation from the middle ear, external auditory meatus, pharynx, and posterior one-third of the tongue are found in the: A. Inferior glossopharyngeal ganglion | back 69 B. Superior glossopharyngeal ganglion |
front 70 Which ganglion contains sensory neurons for the posterior one-third of the tongue but not taste or carotid body input? A. Superior glossopharyngeal ganglion | back 70 A. Superior glossopharyngeal ganglion |
front 71 Which glossopharyngeal ganglion carries taste from the posterior tongue and carotid body input? A. Otic ganglion | back 71 C. Inferior glossopharyngeal ganglion |
front 72 A lesion interrupting afferents from the carotid body would most likely involve the: A. Superior glossopharyngeal ganglion | back 72 B. Inferior glossopharyngeal ganglion |
front 73 Which structures are peripheral ganglia of the vagus nerve? A. Otic and geniculate | back 73 C. Superior and inferior vagal |
front 74 In addition to its sensory ganglia, the vagus has parasympathetic ganglia located: A. In branchial arches | back 74 B. In end organs |
front 75 Parasympathetic ganglia in vagal end organs supply the: A. Head, lungs, digestive tract | back 75 D. Heart, lungs, digestive tract |
front 76 Vagal parasympathetic supply extends through the digestive tract to the level of the: A. Duodenum | back 76 C. Splenic flexure |
front 77 Which ganglion contains primary sensory neurons for sensation from the pharynx, outer ear, and infratentorial meninges? A. Superior vagal ganglion | back 77 A. Superior vagal ganglion |
front 78 Which ganglion contains sensory neuron cell bodies for laryngeal sensation, taste from the epiglottis, and reflex inputs from the aortic arch? A. Superior vagal ganglion | back 78 C. Inferior vagal ganglion |
front 79 Olfactory stimuli reach the olfactory bulbs by nerves traversing the: A. Optic canal | back 79 C. Cribriform plate |
front 80 Short olfactory nerves synapse in the: A. Optic chiasm | back 80 B. Olfactory bulbs |
front 81 The optic nerve carries visual information from the retina primarily to the: A. Medial geniculate nucleus | back 81 C. Lateral geniculate nucleus |
front 82 In addition to the lateral geniculate nucleus, the optic nerve also projects to: A. Extrageniculate pathways | back 82 A. Extrageniculate pathways |
front 83 Which functional categories apply to CN III? A. Somatic sensory, parasympathetic | back 83 C. Somatic motor, parasympathetic |
front 84 A patient cannot elevate the eyelid and has impaired adduction, elevation, and depression of one eye. Which CN III functional component is affected? A. General sensory | back 84 B. Somatic motor |
front 85 CN III somatic motor fibers innervate levator palpebrae superioris and all extraocular muscles except: A. Superior oblique and lateral rectus | back 85 A. Superior oblique and lateral rectus |
front 86 A patient has mydriasis and poor accommodation for near vision after a CN III lesion. Which component is impaired? A. Somatic sensory | back 86 B. Parasympathetic |
front 87 CN III parasympathetic fibers innervate the: A. Dilator pupillae and ciliary muscles | back 87 C. Pupil constrictor and ciliary muscles |
front 88 Which cranial nerves traverse the cavernous sinus and then exit via the superior orbital fissure? A. II, III, IV | back 88 B. III, IV, VI |
front 89 The trigeminal nerve has which functional categories? A. Somatic motor, parasympathetic | back 89 C. General sensory, branchial motor |
front 90 Trigeminal general somatic sensory function includes all of the following except: A. Touch | back 90 C. Taste |
front 91 The trigeminal nerve carries general sensation from the face, mouth, meninges, and the anterior two-thirds of the tongue for: A. Taste | back 91 D. Touch |
front 92 Which area receives general somatic sensory innervation from the trigeminal nerve? A. Posterior tongue taste buds | back 92 B. Nasal sinuses |
front 93 A patient loses facial pain, temperature, vibration, and joint position sense after a trigeminal lesion. Which functional component is impaired? A. General somatic sensory | back 93 A. General somatic sensory |
front 94 The branchial motor component of CN V innervates the: A. Muscles of facial expression | back 94 C. Muscles of mastication |
front 95 Which additional muscle is supplied by trigeminal branchial motor fibers? A. Stapedius | back 95 B. Tensor tympani |
front 96 A patient has weak jaw closure and sound dampening abnormalities due to trigeminal motor dysfunction. Which muscle pair best matches this lesion? A. Masseter and tensor tympani | back 96 A. Masseter and tensor tympani |
front 97 A patient has isolated loss of facial sensation but intact muscles of facial expression. Which nerve is most likely affected? A. Facial nerve | back 97 B. Trigeminal nerve |
front 98 The trigeminal nerve exits the brainstem from the: A. Dorsal midbrain | back 98 D. Ventrolateral pons |
front 99 After leaving the brainstem, the trigeminal nerve enters which space? A. Meckel’s cave | back 99 A. Meckel’s cave |
front 100 Meckel’s cave lies where with respect to the cavernous sinus? A. Medial to cavernous sinus | back 100 C. Posterior and inferolateral |
front 101 The trigeminal ganglion is also called the: A. Ciliary ganglion | back 101 D. Semilunar ganglion |
front 102 The trigeminal ganglion is the: A. Sensory ganglion of CN V | back 102 A. Sensory ganglion of CN V |
front 103 Which trigeminal division traverses the inferior part of the cavernous sinus? A. V2 | back 103 B. V1 |
front 104 The ophthalmic division exits the skull through the: A. Foramen rotundum | back 104 C. Superior orbital fissure |
front 105 The maxillary division exits through the: A. Foramen rotundum | back 105 A. Foramen rotundum |
front 106 The mandibular division exits through the: A. Foramen spinosum | back 106 D. Foramen ovale |
front 107 Pain from the supratentorial dura is carried primarily by: A. CN X | back 107 D. Trigeminal nerve |
front 108 Pain from the infratentorial dura is carried primarily by: A. CN X and upper cervical roots | back 108 A. CN X and upper cervical roots |
front 109 The trigeminal nuclear complex extends from the: A. Midbrain to lower cervical cord | back 109 B. Midbrain to upper cervical cord |
front 110 Which is part of the trigeminal nuclear complex? A. Mesencephalic nucleus | back 110 A. Mesencephalic nucleus |
front 111 Which is not part of the trigeminal nuclear complex? A. Mesencephalic nucleus | back 111 D. Dorsal column nucleus |
front 112 The chief trigeminal sensory nucleus is most analogous to the: A. Anterolateral system | back 112 B. Posterior column system |
front 113 The spinal trigeminal nucleus is most analogous to the: A. Posterior column nuclei | back 113 C. Anterolateral system |
front 114 The mesencephalic trigeminal nucleus mediates primarily: A. Proprioception | back 114 A. Proprioception |
front 115 A patient loses jaw position sense but preserves facial pain and temperature. Which trigeminal nucleus is most likely affected? A. Chief sensory nucleus | back 115 D. Mesencephalic nucleus |
front 116 Fine touch and dental pressure are processed mainly in the: A. Mesencephalic nucleus | back 116 B. Chief sensory nucleus |
front 117 The chief trigeminal sensory nucleus projects to the thalamus via the: A. Medial lemniscus | back 117 D. Trigeminal lemniscus |
front 118 Crude touch, pain, and temperature from the face are processed mainly in the: A. Mesencephalic nucleus | back 118 D. Spinal trigeminal nucleus |
front 119 The main ascending pathway from the spinal trigeminal nucleus is the: A. Trigeminothalamic tract | back 119 A. Trigeminothalamic tract |
front 120 Both the chief sensory and spinal trigeminal systems relay chiefly in which thalamic nucleus? A. VPL | back 120 C. VPM |
front 121 Posterior column nuclei relay to the thalamus through the: A. Spinothalamic tract | back 121 B. Medial lemniscus |
front 122 The principal thalamic target of the posterior column nuclei is the: A. VPM | back 122 D. VPL |
front 123 The dorsal horn sends crude touch, pain, and temperature to the thalamus through the: A. Medial lemniscus | back 123 C. Spinothalamic tract |
front 124 The major thalamic relay for dorsal horn somatosensory pathways is the: A. VPL | back 124 A. VPL |
front 125 The trigeminothalamic and spinothalamic tracts: A. Decussate in cortex | back 125 C. Travel together to thalamus |
front 126 The pain is most often confined to which trigeminal distribution in classic trigeminal neuralgia? A. V1 and V2 | back 126 C. V2 or V3 |
front 127 Initial treatment of classic trigeminal neuralgia is: A. Carbamazepine | back 127 A. Carbamazepine |
front 128 A small unilateral brainstem lesion damages the spinal trigeminal nucleus. Which sensory deficit is most expected? A. Contralateral facial vibration loss | back 128 D. Ipsilateral facial pain loss |
front 129 The facial nerve carries branchial motor and parasympathetic fibers. Which additional sensory components does it also carry? A. Special somatic and visceral | back 129 D. Visceral sensory and general somatic |
front 130 Which set is supplied by the branchial motor component of CN VII? A. Masseter, temporalis, tensor tympani | back 130 B. Facial expression, stapedius, digastric |
front 131 Which pairing best matches the facial nerve’s visceral sensory and general somatic sensory functions? A. Posterior tongue; middle ear | back 131 B. Anterior tongue taste; outer ear |
front 132 The facial nucleus lies in which functional column, and how is it positioned relative to the trigeminal motor nucleus? A. Somatic motor; more rostral | back 132 D. Branchial motor; more caudal |
front 133 The facial colliculus is produced by facial fascicles looping around the: A. Hypoglossal nucleus | back 133 B. Abducens nucleus |
front 134 A patient has a cortical stroke affecting corticobulbar fibers to the facial nucleus. Which weakness pattern is most likely? A. Contralateral lower face weakness | back 134 A. Contralateral lower face weakness |
front 135 A lesion of the facial nucleus, intrapontine fascicles, or peripheral facial nerve most likely causes: A. Contralateral forehead sparing | back 135 B. Ipsilateral whole face weakness |
front 136 At the genu, the facial nerve turns in what direction to enter the facial canal within the temporal bone? A. Anteriorly and superiorly | back 136 D. Posteriorly and inferiorly |
front 137 Which statement about the geniculate ganglion is correct? A. It contains taste and meatal sensory neurons | back 137 A. It contains taste and meatal sensory neurons |
front 138 The greater petrosal nerve leaves CN VII at the genu to reach which ganglion? A. Otic ganglion | back 138 B. Sphenopalatine ganglion |
front 139 The chorda tympani leaves the facial nerve just before the stylomastoid foramen and exits the skull through the: A. Foramen ovale | back 139 C. Petrotympanic fissure |
front 140 After leaving the skull, the chorda tympani joins which nerve to reach the submandibular ganglion? A. Lingual nerve | back 140 A. Lingual nerve |
front 141 The most common facial nerve disorder, characterized by rapid involvement of all facial divisions with later gradual recovery, is: A. Ramsay Hunt syndrome | back 141 D. Bell’s palsy |
front 142 In Bell’s palsy, incomplete eye closure and reduced tearing most directly increase the risk of: A. Retinal detachment | back 142 B. Corneal ulceration |
front 143 Appropriate supportive management for the ocular complication of Bell’s palsy includes: A. Lubricating drops and nighttime taping | back 143 A. Lubricating drops and nighttime taping |
front 144 The afferent limb of the corneal reflex is carried primarily by: A. Maxillary nerve | back 144 D. Ophthalmic nerve |
front 145 Corneal reflex afferents project to which nuclei? A. Mesencephalic and chief sensory | back 145 C. Chief sensory and spinal trigeminal |
front 146 The efferent limb of the corneal reflex travels in CN VII to contract the: A. Frontalis muscle | back 146 B. Orbicularis oculi |
front 147 Which functional category best describes CN VIII? A. Special somatic sensory | back 147 A. Special somatic sensory |
front 148 Sound transmission to the oval window is amplified primarily by the: A. Cochlear duct | back 148 D. Middle ear ossicles |
front 149 The inner ear labyrinth consists of the cochlea, vestibule, and: A. Ampullae | back 149 B. Semicircular canals |
front 150 Why do central lesions proximal to the cochlear nuclei usually not cause unilateral hearing loss? A. Auditory cortex is monaural | back 150 D. Auditory pathways ascend bilaterally |
front 151 Fibers from the dorsal cochlear nucleus cross the pontine tegmentum and ascend in the contralateral: A. Lateral lemniscus | back 151 A. Lateral lemniscus |
front 152 The primary auditory cortex is Brodmann area 41 on Heschl’s gyri, while vestibular hair cells for angular acceleration sit on the ridge within each ampulla called the: A. Macula | back 152 D. Crista ampullaris |
front 153 The mesencephalic trigeminal nucleus is unique because its primary sensory neuron cell bodies lie in the: A. Central nervous system | back 153 A. Central nervous system |
front 154 A unilateral corticobulbar lesion affecting upper motor neuron input to the trigeminal motor nucleus usually causes which deficit? A. Contralateral jaw paralysis | back 154 D. No major jaw deficit |
front 155 The medial vestibulospinal tract descends mainly to the: A. Lumbar cord | back 155 B. Cervical cord |
front 156 The lateral vestibulospinal tract is important for maintaining: A. Balance and extensor tone | back 156 A. Balance and extensor tone |
front 157 The medial longitudinal fasciculus primarily connects nuclei involved in: A. Swallowing and speech | back 157 C. Eye movements and vestibular function |
front 158 Conductive hearing loss is caused mainly by abnormalities of the: A. Cochlea or eighth nerve | back 158 D. External canal or middle ear |
front 159 The most common cerebellopontine angle tumor is: A. Meningioma | back 159 B. Acoustic neuroma |
front 160 Most cases of vertigo are caused by disorders of the: A. Inner ear | back 160 A. Inner ear |
front 161 A patient has brief vertigo lasting seconds when rolling over in bed. The most likely diagnosis is: A. Vestibular neuritis | back 161 C. Benign paroxysmal positional vertigo |
front 162 Recurrent vertigo with fluctuating progressive hearing loss and tinnitus is most characteristic of: A. Bell palsy | back 162 D. Meniere disease |
front 163 Which disorder can produce symptoms resembling Meniere disease? A. Autoimmune inner ear disease | back 163 A. Autoimmune inner ear disease |
front 164 The only muscle supplied by the branchial motor component of CN IX is the: A. Cricothyroid | back 164 B. Stylopharyngeus |
front 165 The branchial motor component of CN IX arises from the: A. Hypoglossal nucleus | back 165 C. Nucleus ambiguus |
front 166 Preganglionic parasympathetic fibers of CN IX arise from the: A. Superior salivatory nucleus | back 166 D. Inferior salivatory nucleus |
front 167 The general visceral sensory portion of CN IX conveys input from carotid body: A. Pain fibers and touch | back 167 B. Baroreceptors and chemoreceptors |
front 168 Taste from the posterior one-third of the tongue is carried by CN IX to the: A. Spinal trigeminal nucleus | back 168 C. Rostral nucleus solitarius |
front 169 The vagal trigone is formed by the: A. Nucleus ambiguus | back 169 D. Dorsal motor nucleus X |
front 170 The branchial motor component of the vagus controls nearly all pharyngeal muscles, upper esophageal muscles, and the muscles of the: A. Larynx | back 170 A. Larynx |
front 171 Unconscious visceral sensation from the aortic arch, thoracoabdominal viscera, and cardiorespiratory system is carried mainly by: A. Glossopharyngeal nerve | back 171 B. Vagus nerve |
front 172 A lower motor neuron lesion of CN XI most likely causes: A. Contralateral shoulder weakness and head-turn weakness | back 172 C. Ipsilateral shrug and head-turn weakness |
front 173 A lesion in the primary motor cortex affecting hypoglossal control causes: A. Ipsilateral tongue weakness | back 173 D. Contralateral tongue weakness |
front 174 A lesion of the hypoglossal nucleus or exiting nerve causes: A. Ipsilateral tongue weakness | back 174 A. Ipsilateral tongue weakness |
front 175 With unilateral tongue weakness, the tongue deviates on protrusion toward the: A. Normal side | back 175 B. Weak side |
front 176 A glomus jugulare tumor most often impairs which cranial nerves? A. VII, VIII, IX | back 176 C. IX, X, XI |
front 177 Hoarseness is often caused by: A. Trigeminal motor weakness | back 177 D. Mechanical vocal cord lesions |
front 178 Breathiness of the voice is caused by: A. Incomplete vocal cord adduction | back 178 A. Incomplete vocal cord adduction |
front 179 In a unilateral lesion of CN X or nucleus ambiguus, the uvula deviates toward the: A. Weak side | back 179 B. Normal side |
front 180 In the stage curtain sign from a unilateral vagal lesion, the soft palate on the affected side: A. Elevates excessively | back 180 C. Hangs abnormally low |