Foramina and Cranial Nerves Flashcards
What are the contents of the superior orbital fissure?
The occulomotor nerve (CN III), the trochlear nerve (CN IV), the ophthalmic nerve (CN V1), the abducens nerve (CN VI), and the ophthalmic vein.
What are the contents of the inferior orbital fissure?
The maxillary nerve (CN V2)
What are the contents of the foramen rotundum?
The maxillary nerve (CN V2).
What are the contents of the foramen ovale?
The mandibular nerve (CN V3). It then enters the infra-temporal fossa.
What are the contents of the foramen spinosum?
The middle meningeal artery and vein, and the meningeal branch of the mandibular nerve (CN V3).
What are the contents of the internal acoustic meatus?
The facial nerve (CN VII) and the vestibulocochlear nerve (CN VIII)
Where does the facial nerve (CN VIII) exit to enter the face?
The stylomastoid foramen.
What will happen if the facial nerve is affected at the stylomastoid foramen?
The SVE portions of the facial nerve will be affected (Bell’s palsy), but the sensory fibers will be unaffected.
What are the contents of the jugular foramen?
The inferior petrosal sinus, the internal jugular vein, the glossopharyngeal nerve (CN IX), the vagus nerve (CN X), and the spinal accessory nerve (CN XI).
What are the contents of the hypoglossal canal?
The hypoglossal nerve (CN XII).
What are the contents of the mandibular foramen?
The inferior alveolar nerve, artery, and vein.
What are the contents of the mental foramen?
The mental nerve, artery, and vein.
