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Neurology
FA complete review Cranial Nerves
| Question | Answer |
|---|---|
| What is the name of CN I? | Olfactory |
| What is the function of CN I? | Smell |
| Smell is sensed by which cranial nerve? | Olfactory |
| Which is the only cranial nerve without Thalamic relax to cortex? | Olfactory |
| What is a unique CN characteristic? | Only cranial nerve without thalamic relay to cortex |
| Sensory or Motor. Olfactory cranial nerve? | Sensory |
| CN I is an sensory or motor cranial nerve type? | Sensory |
| Name of CN II | Optic |
| What is the function of CN II? | Sight |
| Which cranial nerve's function is sight? | Optic |
| Sensory or Motor. Optic cranial nerve? | Sensory |
| Is CN II an sensory or motor type cranial nerve? | Sensory |
| What number is the Oculomotor nerve? | III |
| Name of CN III | Oculomotor |
| List of functions of the CN III: | 1. Eye movement 2. Pupillary constriction 3. Accomodation 4. Eyelid opening |
| Which eye movement (ocular) muscles are innervated by CN III? | SR, IR, MR, and IO |
| What are features of the sphincter pupillae? | 1. Edinger-Westphal nucleus 2. Muscarinic receptors |
| What type of receptors are associated with the sphincter pupillae? | Muscarinic receptors |
| Which muscle makes eyelid opening possible? | Levator palpebrae |
| Sensory, Motor, or Both. Oculomotor nerve? | Motor |
| What type of nerve is the CN III? | Motor |
| What is the name of CN IV? | Trochlear |
| What number is the Trochlear nerve? | IV |
| What is the function of CN IV? | Eye movement |
| Eye movement by the Trochlear nerve is done by the innervation of which ocular muscle? | SO |
| Which is the only eye muscle innervated by the CN IV? | SO |
| Sensory, Motor, or Both. CN IV? | Motor |
| What is the name of CN V? | Trigeminal |
| What are the functions of the Trigeminal nerve? | 1. Mastication 2. Facial sensation 3. Somatosensation from anterior 2/3 of tongue 4. Dampening of loud noises |
| What are the divisions of the CN V that provide Facial sensation? | Ophthalmic, Maxillary, and Mandibular |
| To what part of the tongue does the Trigeminal nerve provide somatosensation? | Anterior 2/3 of tongue |
| What muscle is innervated by the CN V that dampens loud noises? | Tensor tympani |
| The Tensor tympani is innervated by which cranial nerve? | Trigeminal |
| Sensory, Motor, or Both. Trigeminal nerve? | Both |
| Which cranial nerves are both, motor and sensory? | Trigeminal (V), Facial (VII), Glossopharyngeal (IX), and Vagus (X) |
| Name of CN VI? | Abducens |
| The Abducens cranial nerve is what number? | VI |
| What is the involved action of CN VI? | Eye movement |
| Which ocular muscle is innervated by CN VI? | LR |
| The lateral rectus is innervated by the ________________ nerve. | Abducens |
| Sensory or Motor. Abducens nerve? | Motor |
| What is the name for CN VII? | Facial |
| List of functions of CN VII: | - Facial movement - Taste from anterior 2/3 of tongue - Lacrimation - Salivation - Eye closing - Auditory volume modulation |
| Which glands innervated by CN II cause salivation? | Submandibular and Sublingual glands |
| What muscle causes eye closing? | Orbicularis oculi |
| The Orbicularis oculi is innervated by which CN? | Facial |
| The Chorda tympani is innervated by the ______________ nerve. | Facial |
| Auditory muscle innervated by the __________ nerve. | Facial |
| What is the function of the Stapedius muscle? | Auditory volume modulation |
| Sensory, Motor, or Both. CN VII? | Both |
| What type of nerve is the Facial cranial nerve, sensory or motor? | Both |
| What is the name for CN VIII? | Vestibulocochlear |
| What Roman number is given to the Vestibulocochlear nerve? | VIII |
| What are the associated functions of the Vestibulocochlear nerve? | Hearing and balance |
| Damage to the CN VIII may cause deficits in: | Hearing and balance |
| A person with a clear loss of balance and hard of hearing, might suffered from either compression or damage to which cranial nerve? | Vestibulocochlear |
| What type of nerve is CN VIII, sensory or motor? | Sensory |
| Sensory or motor. Vestibulocochlear nerve? | Sensory |
| What is the name for CN IX? | Glossopharyngeal |
| What is the roman numeral designated for the Glossopharyngeal nerve? | IX |
| What are some of the associated functions of CN IX? | 1. Taste and sensation from posterior 1/3 of tongue, 2. Swallowing 3. Salivation 4. Monitoring carotid body and sinus chemo- and baroreceptors, 5. Elevation of pharynx/larynx |
| Which part of the tongue is innervated by the Glossopharyngeal nerve? | Posterior 1/3 |
| CN IX innervation of the posterior 1/3 of tongue provides: | Taste and sensation |
| CN associated with Carotid body and sinus chemo- and baroreceptor monitoring? | Glossopharyngeal |
| Which chemo- and baroreceptors are monitored by the CN IX? | Carotid body and sinus |
| Sensory, Motor, or Both. Cranial nerve 9? | Both |
| What muscle is innervated by the Glossopharyngeal nerve that elevate pharynx/ larynx? | Stylopharyngeus |
| The Stylopharyngeus is innervated by the ______________ nerve. | Glossopharyngeal |
| Vagus nerve roman numeral | X |
| What is the name for CN X? | Vagus |
| List of functions for CN X? | - Taste from supraglottic region - Swallowing - Soft palate elevation - Midline uvula - Talking - Cough reflex - Parasympathetics to thoracoabdominal viscera - Monitoring aortic arch chemo- and baroreceptors |
| Which chemo- and baroreceptors are monitored by the Vagus nerve? | Aortic arch |
| Deficient response of aortic arch chemoreceptors and baroreceptors may be due to damage to which cranial nerve? | Vagus |
| Which reflex is associated with proper Vagus nerve functioning? | Cough reflex |
| (-) Cough reflex. Dx? | Damage/injury to CN X |
| Which CN is involved in Soft palate elevation? | Vagus |
| CN that provides taste to the Supraglottic region? | Vagus |
| Sensory, Motor, or Both. Vagus nerve? | Both |
| Motor and sensory CN that is involved in swallowing, talking and midline uvula location? | Vagus |
| Name of the CN XI? | Accessory |
| What is the Roman numeral given to the Accessory nerve? | XI |
| What are the functions involved with the Accessory nerve? | Head turning, shoulder shrugging (SMC, trapezius) |
| Which shoulder/neck muscles are innervated by CN XI? | Sternocleidomastoid and Trapezius |
| What type of nerve is CN XI, sensory or motor? | Motor |
| A person with difficulty shrugging the shoulder, most likely indicates injury to which cranial nerve? | Accessory |
| Name of CN XII: | Hypoglossal |
| What is the function associated with CN XII? | Tongue movement |
| Sensory or Motor. Hypoglossal nerve? | Motor |
| What action would be deficient or abnormal in case of injury to Hypoglossal cranial nerve? | Tongue movement |
Created by:
rakomi
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