Question | Answer |
Cranial Nerve I | Olfactory Nerve |
Cranial Nerve II | Optic Nerve |
Cranial Nerve III | Oculomotor Nerve |
Cranial Nerve IV | Trochlear Nerve |
Cranial Nerve V | Trigeminal Nerve |
Cranial Nerve VI | Abducens Nerve |
Cranial Nerve VII | Facial Nerve |
Cranial Nerve VIII | Auditory-vestibular Nerve |
Cranial Nerve IX | Glossopharyngeal nerve |
Cranial Nerve X | Vagus Nerve |
Cranial Nerve XI | Accessory Nerve |
Cranial Nerve XII | Hypoglossal Nerve |
What is the function of general somatic nerves? | sensations from the skin, mucous membranes |
Which cranial nerves are general somatic nerves? | V, VII, IX and X |
What is the function of general visceral nerves? | sensations from the viscera |
Which cranial nerves are general Visceral nerves? | IX and X |
What are the two kinds of sensory fibers? | general somatic and general visceral |
What are special sensory fibers? | have unique sensations |
What are the special sensory nerves and their function? | II and VIII for vision and hearing/equilibrium |
What are the special visceral nerves and their function? | I,VII, IX and X which are responsible for olfaction and taste. |
What is Cranial nerve I? | Olfactory |
What is Cranial Nerve II? | Optic |
What is cranial nerve III? | occulomotor |
What is cranial nerve IV? | Trochlear |
What is cranial nerve V? | trigiminal |
What is cranial nerve VI? | Abducens |
What is cranial nerve VII? | facial |
What is cranial nerve VIII? | vestibulocochlear |
What is cranial nerve IX? | Glossopharyngeal |
What is cranial nerve X? | vagal |
What is cranial nerve XI? | Spinal Accessory |
What is cranial nerve XII? | hypoglossal |
What are the fiber types and function of the Olfactory nerve? | special sensory and olfaction |
What are the fiber types and function of the optic nerves? | special sensory and vision |
What are the fiber types of the oculomotor nerves and their main function? | eye moments, constriction of pupil |
What is the fiber types of the trigeminal nerve and its main function? | mixed. Muscles of mastication and facial sensation. |
What are the fiber types of the abducens and its main function? | motor and eye movements |
What are the fiber types of the facial nerves and their main functions? | mixed. Muscles of facial expression, taste, salivation and lacrimation |
What are the fiber types of the vestibulocochlear and its main function? | hearing and equilibrium |
What are the fiber types of the glossopharyngeal nerve and its main function? | pharyngeal muscles, salvation and taste |
What are the fiber types of the vagus nerve and its main function? | major nerve for parasympathetics, laryngeal muscles and taste |
What is the fiber type for the spinal accessory nerve and its main function? | motor. Controls trapezius and Sternocleidomastoid |
What is the fiber type for the hypoglossal and the main function? | motor, innervations of tongue muscles |
Which cranial nerves are purely sensory? | I, II & VIII |
Which cranial nerves are purely motor? | III, IV, VI, XI & XII |
What are the 3 divisions of the Trigeminal Nerve? | V1 – Opthalmic, V2 – Maxillary, V3 – Mandibular |
What nerves run thru the cribriform plate? | CN I |
What nerve/s run thru the Optic Canal? | CNII |
What nerves run thru the Superior Orbital Fissure? | CN III,IV,V1 & VI |
What nerves run thru the foramen rotundum? | CN V2 |
What nerves run thru the foramen ovale? | CN V3 |
What nerves run thru the internal acoustic meatus? | CN VII & VIII |
What nerves run thru the jugular foramen? | CN IX, X and XI |
What nerves run thru the hypoglossal Canal? | CN XII |
What nerves run thru the Foramen Magnum? | CN XI (spinal portion |
Where are the cell bodies for the olfactory nerve located? | olfactory mucosa in the roof of the nasal cavity |
How do olfactory nerves enter the skull? | cribriform plate of the ethmoid bone |
What kind of injury can cause loss of smell? | fractures of the cranial bone |
Where are cell bodies for the optic nerve located? | Retina |
What is the optic nerve an extension of? | develops as an extention of the diencephalon |
What surrounds the optic nerve? | meninges |
What does the optic nerve pass thru to enter the middle cranial fossa? | optic canal |
How do you test cranial nerve I? | small |
What do you test for cranial nerve 2 disfunction? | vision |
How do you test cranial nerves 3,4 and 6? | test eye movement |
How do you test cranial nerve 5? | loss of sensation to the face |
How do you test cranial nerve 7? | paralysis of facial muscles |
How do you test CN 8? | hearing loss |
How do you test CN 9? | loss of sensory limb of the gag reflex |
How do you test CN 10? | uvula points to normal side |
How do you test CN 11? | dropping of shoulder |
How do you test CN 12? | tongue points to the side of lesion |