Foramina and canals of cranial base

The exercise was created 2018-10-16 by karlssonsophie. Question count: 26.

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  • Incisive foramen Anastomosis of posterior septal branches of sphenopalatine artery and greater palatine artery
  • Greater palatine foramen Greater palatine nerve and vessels
  • Lesser palatine foramen Lesser palatine nerve and vessels
  • Foramen lacerum (passes over foramen) Greater petrosal nerve
  • Foramen ovale Lesser petrosal nerve, mandibular nerve, accessory meningeal artery
  • Foramen spinosum Middle meningeal vessels, meningeal branch of the mandibular nerve
  • Carotid canal Internal carotid artery, internal carotid plexus
  • Petrotympanic fissure Chorda tympani of intermediate nerve (CN7)
  • Inferior tympanic canaliculus Tympanic branch of glossopharyngeal nerve (CN9)
  • Mastoid canaliculus Auricular branch of vagus nerve (CN10)
  • Stylomastoid foramen Facial nerve (CN7)
  • Jugular fossa Glossopharyngeal nerve (CN9), vagus nerve (CN10), Accessory nerve (CN11), superior bulb, internal jugular vein
  • Mastoid foramen Mastoid emissary vein, Posterior meningeal artery
  • Hypoglossal canal Hypoglossal nerve (CN12)
  • Foramen magnum Medulla oblongata, vertebral arteries, venous plexus, spinal roots of accessory nerves (CN11)
  • Foramen cecum Emissary vein to superior sagittal sinus
  • Nasal slit and anterior ethmoidal foramen Anterior ethmoidal VAN
  • Foramina of cribriform plate Olfactory nerves (CN1)
  • Posterior ethmoidal foramen Posterior ethmoidal VAN
  • Optic canal Optic nerve (CN2), Ophthalmic artery
  • Superior orbital fissure Oculomotor nerve (CN3), Trochlear nerve (CN6), lacrimal, frontal and nasociliary branches of ophthalmic nerve (CN5, 1), abducens nerve (CN6), superior ophthalmic vein
  • Foramen rotundum Maxillary nerve (CN5, 2)
  • Internal acoustic meatus Facial nerve (CN7), vestibulocochlear nerve (CN8), labyrinthine artery
  • Opening of vestibular aqueduct Endolymphatic duct
  • Jugular foramen Inferior petrosal sinus, glossopharyngeal nerve (CN9), vagus nerve (CN10), Accessory nerve (CN11), sigmoid sinus, posterior meningeal artery
  • Condylar canal (inconstant) Emissary vein and meningeal branch of ascending pharyngeal artery

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