Foramina and Canals of Cranial Base Flashcards
What passes through the Incisive Fossa?
Nasopalatine nerve
Anastomosis of posterior septal branches of sphenopalatine artery and greater palatine artery
What passes through Greater Palatine Foramen?
Greater Palatine nerve and vessels
What passes through the lesser palatine foramen?
Lesser palatine nerve and vessels
What passes through the foramen Lacerum?
Greater Petrosal nerve(passes over foramen)
What passes through the foramen Ovale?
Lesser Petrosal Nerve
Mandibular Nerve
Accessory Meningeal Artery
What passes through the foramen spinosum?
Middle meningeal vessels
Meningeal branches of mandibular nerve(CN V3)
What passes through the carotid canal?
Internal Carotid Artery
Internal Carotid Plexus
What passes through the petrotympanic fissure?
Chorda tympani of intermediate nerve(CN VII)
What passes through the inferior tympanic canaliculus?
Tympanic branch of glossopharyngeal Nerve(CN IX)
What passes through the mastoid canaliculus?
Auricular branch of vague nerve(CN X)
What passes through the stylomastoid foramen?
Facial Nerve(CN VII)
What passes through the Jugular Fossa?
Glossopharyngeal Nerve
Vagus Nerve
Accessory Nerve
Superior bulb and internal jugular vein
What passes through the mastoid foramen?
Mastoid emissary vein
Posterior meningeal artery
What passes through the hypoglossal canal?
Hypoglossal Nerve
What passes through the foramen Magnum?
Medulla Oblongata
Vertebral arteries and venous plexus
Spinal roots of accessory nerves
What passes through Foramen caecum?
Emissary vein to superior sagittal sinus
What passes through the nasal slut and anterior ethmoidal foramen?
Anterior ethmoidal artery, vein, and nerve
What passes through the foramina of cribriform plate?
Olfactory nerves(CN I)
What passes through the posterior ethmoidal foramen?
Posterior ethmoidal artery,vein and nerve
What passes through the optic canal?
Optic nerve(CN II), Ophthalmic artery
What passes through the superior orbital fissure?
Occulomotor Nerve (CN III)
Trochlear Nerve(CN IV)
Lacrimal, frontal and nasociliary branches of ophthalmic nerve(CN V1)
Abducens Nerve(CN VI)
Superior ophthalmic vein
What passes through Foramen Rotundum?
Maxillary Nerve(CN V2)
What passes through Foramen Ovale?
Mandibular nerve(CN V3)
Accessory meningeal artery
Lesser Petrosal Nerve
What passes through Foramen Spinosum?
Middle meningeal artery and vein
Meningeal branch of mandibular nerve
What passes through Foramen Lacerum?
Greater Petrosal Nerve(passes over Foramen)
Meningeal branches of ascending pharyngeal artery(from external Carotid artery)
What passes through Carotid canal?
Internal carotid artery
Internal carotid nerve plexus
There are two hiatus on the petrous part of temporal bone for?
Lesser Petrosal Nerve
Greater Petrosal Nerve
What passes through the Internal Acoustic Meatus?
Facial Nerve(CN VII)
Vestibulocochlear Nerve (CN VIII)
Labyrinthine artery
What passes through the opening of vestibular aqueduct?
Endolymphatic duct
What passes through the mastoid foramen?
Emissary vein(and occasional branch of occipital artery)
What passes through the Jugular Foramen?
Inferior Petrosal Sinus
Glossopharyngeal nerve(CN IX)
Vagus Nerve(CN X)
Accessory Nerve(CN XI)
Sigmoid Sinus
Posterior meningeal artery (terminal branch of ascending pharyngeal artery)
What passes through the condylar canal?
Emissary vein and meningeal branch of ascending pharyngeal artery
What passes through Foramen Magnum?
Medulla Oblongata
Meninges
Vertebral arteries and venous plexus
Meningeal branches of vertebral arteries
Spinal roots of accessory nerves