Frage | Antworten |
CN I | Olfactory nerve |
CN II | Optic nerve |
CN III | Occulomotor nerve |
CN IV | Trochlear |
CN V | Trigeminal nerve |
CN VI | Abducens |
CN VII | Facial nerve |
CN VIII | Vestibulocochlear nerve |
CN IX | Glossopharyngeal nerve |
CN X | Vagus nerve |
CN XI | Spinal accessory nerve |
CN XII | Hypoglossal |
Function of olfactory nerve (CN I) | Smell. |
Function of the optic nerve (CN II) | Sight, pupillary reflexes |
Function of the oculomotor nerve (CN III) | Moves the eye and elevates the upper eyelid. |
Function of the trochlear nerve (CN IV) | Motor nerve for the superior oblique muscle. |
Function of the trigeminal nerve (CN V) | Mastication and sensory innervation for the face and anterior half of the scalp. |
Function of the abducens nerve (CN VI) | abducts the eye via nerve supply to the lateral rectus muscles. |
Function of the facial nerve (CN VII) | Facial expression, speech articulation, winking, ingestion of food and drink, taste, salivary and nasal secretions. |
Function of the vestibulocochlear nerve (CN VIII) | Maintenance of equilibrium, hearing. |
Function of the glossopharyngeal nerve (CN IX) | elevates pharynx, salivary secretion, taste. |
Function of the vagus nerve (CN X) | phonation, visceral sensation and reflexes, cardiac depressor, bronchoconstrictor, GI tract peristalsis and secretion. |
Function of the Accessory nerve (CN XI) | Movements of the head and shoulders (spinal part) |
Function of the hypoglossal nerve (CN XII) | Movements of the tongue. |
Damage of the olfactory nerve (CN I) results in: | Anosmia. |
Damage of the optic nerve (CN II) results in: | monocular blindness, loss of pupillary constriction. |
Damage of the occulomotor nerve (CN III) results in: | ptosis (drooping of eyelids), dilation of pupil, loss of the accommodation reflex. |
Damage of the trochlear nerve (CN IV) results in: | diplopia, failure to rotate eye down and in. |
Damage of the trigeminal nerve (CN V) results in: | loss of facial sensations, weakness of muscles of mastication, deviation of the opened jaw to the ipsilateral side. |
Damage of the abducens nerve (CN VI) results in: | Diplopia, convergent squint, abductor paralysis of ipsilateral eye. |
Damage of the facial nerve (CN VII) results in: | ipsilateral facial paralysis (Bell's palsy), dry mouth, loss of taste in anterior 2/3 of tongue |
Damage of the vestibulocochlear nerve (CN VIII) results in: | vertigo, nystagmus, dysequilibrium tinnitus, loss of hearing. |
Damage of the glossopharyngeal nerve (CN IX) results in: | Slight dysphagia, partial dry mouth, loss of taste in posterior 1/3 of tongue. |
Damage of the vagus nerve (CN X) results in: | palpitation, tachycardia, vomiting, sowing of respiration, ipsilateral paralysis of soft palate and larynx, hoarseness, anesthesia of the larynx. |
Damage of the accessory nerve (CN XI) results in: | weakness in shrugging ipsilateral shoulder, turning head to the opposite side. |
Damage of the hypoglossal nerve (CN XII) results in: | unilateral paralysis of the tongue, deviation to ipsilateral side. |
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