Nerve of the Cranium - foramen and route Flashcards
What nerve passes through the cribriform plate?
olfactory nerve (CNI)
What nerve passes through the optic canal?
Optic nerve (CNII)
What nerve passes through the superior orbital fissure?
oculomotor
trochlear
ophthlamic (CNV1)
abducens
What nerve passes through the foramen rotundum?
maxillary nerve
What nerve passes through the Foramen ovale?
mandibular nerve
What nerve(s) passes through the internal acoustic meatus?
facial nerve
vestibulocochlear
What nerve(s) passes through the jugular foramen?
glosopharyngeal
vagus
accessory
What nerve passes through the hypoglossal canal?
hypoglossal nerve
What nerve passes through the foramen magnum?
spinal division of the accessory nerve
What nerve passes through the foramen spinosum?
meningeal branch of mandibular nerve (trigeminal CNV)
What is the route of the olfactory nerve?
originate in the receptors of the olfactory epithelium and pass through the olfactory foramina in the cribriform plate of the ethmoid bone, ending at the olfactory bulbs.
What is the route of the optic nerve?
enters the bony skull through the optic foramen and travels within the optic canal to reach the middle cranial fossa. Located in the middle cranial fossa is the optic chiasm. The optic nerves of both eyes meet at the optic chiasm and form the optic tracts.
What is the route of the oculomotor nerve?
The oculomotor nerve exits the brainstem near midline at the base of the midbrain just caudal to the mammillary bodies. It passes through the cavernous sinus and proceeds through the supraorbital fissure to reach the orbit of the eye
What is the route of the trochlear nerve?
The trochlear nerve appears from the dorsal region of the brainstem around the level of caudal mesencephalon below the inferior colliculus, it winds ventrally around the brainstem and stretches forward to the eye through the subarachnoid space.
What is the route of the trigeminal nerve?
The origin of the trigeminal nerve is the annular protuberance at the limit of the cerebellar peduncles. It originates from three sensory nuclei (mesencephalic, principal sensory, spinal nuclei of trigeminal nerve) and one motor nucleus (motor nucleus of the trigeminal nerve) extending from the midbrain to the medulla.
