Internal foramina of the skull “neurocranium”
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14 Terms
What structure passes through the Foramen cecum?
Emissary veins to nasal cavity.
What structure passes through the Olfactory foramen in cribriform plate?
Olfactory nerves [I] .
What structures pass through the Optic canal?
Optic nerve [II]
Ophthalmic artery
What structures pass through the Superior orbital fissure?
Oculomotor nerve [III]
Trochlear nerve [IV]
Ophthalmic division of the trigeminal nerve [V₁]
Abducent nerve [VI]
Ophthalmic veins
What structure passes through the Foramen rotundum?
Maxillary division of the trigeminal nerve [V₂]
What structures pass through the Foramen ovale?
Mandibular division of the trigeminal nerve [V₃]
Lesser petrosal nerve
What structure passes through the Foramen spinosum?
Middle meningeal artery
What structure passes through the Hiatus for the greater petrosal nerve?
Greater petrosal nerve
What structure passes through the Hiatus for the lesser petrosal nerve?
Lesser petrosal nerve
What structures pass through the Foramen magnum?
End of brainstem / beginning of spinal cord
Vertebral arteries
Spinal roots of the accessory nerve
Meninges
What structures pass through the Internal acoustic meatus?
Facial nerve [VII]
Vestibulocochlear nerve [VIII]
Labyrinthine artery
What structures pass through the Jugular foramen?
Glossopharyngeal nerve [IX]
Vagus nerve [X]
Accessory nerve [XI]
Inferior petrosal sinus
Sigmoid sinus (forming internal jugular vein)
What structures pass through the Hypoglossal canal?
Hypoglossal nerve [XII]
Meningeal branch of the ascending pharyngeal artery
What structure passes through the Condylar canal?
Emissary vein