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12 Cards in this Set
- Front
- Back
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Give the following for CN I:
component (S/M/B) location of nerve cell bodies Cranial exit main actions Testing Types/sites of lesion Abnormal findings |
Name: Olfactory
component: Sensory location of nerve cell bodies: Oldfactory epithelium Cranial exit: foraminia in cribiform plate of ethomoid bone main actions: smell from nasal mucosa of root of each nasal cavity and superior sides of nasal septum and superior concha Types/sites of lesion: fx of cribiform plate Abnormal findings: anosmia (loss of smell), CSF rhinorrhea Testing:coffee or mint under nose |
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Give the following for CN II:
component (S/M/B) location of nerve cell bodies Cranial exit main actions Types/sites of lesion Abnormal findings Testing |
Name: Optic
component: Sensory location of nerve cell bodies:retina (ganglion cells) Cranial exit: optic canal main actions: vision from retina Types/sites of lesion: direct trauma to orbit or eyeball, fx involving canal, pressure on optic pathyway, laceration or intracerebral clot in the temporal, parietal or occipital lobes of brain Abnormal findings: loss of pupillary constriction, visual field defects Testing: cover 1 eye before confrontation, acuity, look for nystagmus or non movement Testing: |
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Give the following for CN III:
component (S/M/B) location of nerve cell bodies Cranial exit main actions Types/sites of lesion Abnormal findings Testing |
Name: Oculomotor
component: Motor location of nerve cell bodies:MB for somatic,presynaptic. MB/postsynaptic, ciliary ganglion Cranial exit: superior orbital fissure main actions:somatic: motor to superior rectus, inferior rectus, medial recuts, interior oblique, and levator palpebrae superioris muscles, raises superior eyelid, turns eyeball superiorly, inferiorly, and medially (visceral) parasympathetic innervation to sphinter of pupil and ciliary muscle, constricts pupil and accomodates lens of eye Types/sites of lesion: stretching of nerve going around brain stem; fx of orbit Abnormal findings: loss of pain/touch sensations, parasthesia masseter and temporalis mm don't contract; deviation of mandible ISPI of injury with mouth is open Testing: Draw H, confrontation |
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Give the following for CN IV:
component (S/M/B) location of nerve cell bodies Cranial exit main actions Types/sites of lesion Abnormal findings Testing |
Name: trochlear
component: motor location of nerve cell bodies:MB Cranial exit: superior orbital fissure main actions: motor to superior oblique that assists turning eye interlaterally Types/sites of lesion: stretching of nerve when going around BS, fx of orbit Abnormal findings: oss of pain/touch sensations, parasthesia masseter and temporalis mm don't contract; deviation of mandible ISPI of injury with mouth is open Testing: Draw H, confrontation |
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Give the following for CN V:
component (S/M/B) location of nerve cell bodies Cranial exit main actions Abnormal findings Testing |
Name: Trigeminal 3 parts
component: sensory for parts 1, 2, and 3, motor also for 3. location of nerve cell bodies: trigeminal ganglion for all 3 Cranial exit:1: superior obital fissure 2:formane rotundum 3:formane ovale main actions: 1 & 2: sensation from cornea of eye, eyelids, nose, skin of forhead, nasal cavity 3: sensation over lower face, motor for mm of mastication, ant belly of digastric Abnormal findings:1: can't B close eyes, feel object in eye 2:oss of pain/touch sensations, parasthesia masseter and temporalis mm don't contract; deviation of mandible ISPI of injury with mouth is open Testing: Sensory sharp on cheek vs forehead, dull, temperature. Motor clench teeth and palpate |
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Give the following for CN VI:
component (S/M/B) location of nerve cell bodies Cranial exit main actions Types/sites of lesion Abnormal findings Testing |
Abducens
component:motor location of nerve cell bodies: pons Cranial exit: superior orbital fissure main actions: motor to lateral rectus Types/sites of lesion: base of brain or fx involving cavernous sinus or orbit Abnormal findings:eye fails to move laterally, diploma Testing: follow finger laterally when start in center Testing:Draw H, confrontation |
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Give the following for CN VII:
component (S/M/B) location of nerve cell bodies Cranial exit main actions Types/sites of lesion Abnormal findings |
Name: Facial
component: Both location of nerve cell bodies: Pons Cranial exit: internal acoustic meatus facial canal, stylomastiod foramen main actions: motor=expression, glands and scalp sensory and 2/3 tongue ana palatte Types/sites of lesion: lacerationor confusionin parotid region, fx of temporal bone, intracranial hematoma Abnormal findings:facial drooping, loss of taste |
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Give the following for CN VIII:
component (S/M/B) location of nerve cell bodies Cranial exit main actions Types/sites of lesion Abnormal findings Testing |
Name: vestibularcocholear
component: sensory location of nerve cell bodies: vestibular ganglion Cranial exit:internalacoustic meatus main actions: vestibular sensation from semicircular ducts, utircle and saccule related to position of head Types/sites of lesion: acoustic neuroma Abnormal findings: tinnitis, hearing loss, N/V, dizziness, vertigo Testing: using a tuning before behind the ear and out laterally, compare sides |
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Give the following for CN IX:
component (S/M/B) Cranial exit main actions Types/sites of lesion Abnormal findings |
Name: Glossopharyngeal
component: B. Motor- elevate larynx. Sensory-carotid sinus, taste from posterior 1/3 Cranial exit: jugular formaen main actions: swallowing, sensation of pharynx, middle ear, carotid, tongue Types/sites of lesion: BS lesion, deep lacceration of Neck Abnormal findings: loss of taste posterior 1/3, loss of sensation of affected side, and absent gag reflex on affected side |
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Give the following for CN X:
Cranial exit main actions Types/sites of lesion Abnormal findings |
Name: Vagus
component: Both Cranial exit: jugular foramen main actions: mm of pharynx, larynx, smooth mm, glands of thorax, supplies heart,lungs Types/sites of lesion:surgery of neck, other disease processes because of long course Abnormal findings: Deviation of Uvula to unaffected side, hoarseness, difficulty swallowing or speaking |
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Give the following for CN XI:
component (S/M/B) location of nerve cell bodies Cranial exit main actions Types/sites of lesion Abnormal findings Testing |
Name: Spinal accessory
component: Motor location of nerve cell bodies: SC & medulla Cranial exit: jugular foramen main actions: motor to trapezius and SCM Types/sites of lesion: laceration of neck Abnormal findings: drooping of shoulder, paralysis of shoulder Testing: apply pressure down on shoulders |
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Give the following for CN XII:
component (S/M/B) location of nerve cell bodies Cranial exit main actions Types/sites of lesion Abnormal findings Testing |
Name Hypoglossal
component Motor location of nerve cell bodies: rostral medulla Cranial exit: hypoglossal canal main actions: motor of intrinsic and extrinsic mm of tongue Types/sites of lesion: basal skull fx, laceration Abnormal findings: protruded tongue deviates toward affected side;moderate dysarthria Testing: inspect of tongue fasiculations and atrophy |
