Skull foramina Flashcards
Where is the optic canal and what does it transmit? (2)
In sphenoid between body and two roots of lesser wings
Optic nerve
Ophthalmic artery
Where is the superior orbital fissure and what does it transmit? (9)
In sphenoid between body and greater/lesser wings Oculomotor Trochlear Abducens Lacrimal nerve Frontal nerve Nasociliary nerve Orbital branch of middle meningeal artery Recurrent branch of lacrimal artery Superior ophthalmic vein
Where is the foramen rotundum and what does it transmit? (1)
Greater wing of sphenoid
Maxillary nerve
Where is the foramen ovale and what does it transmit? (4)
Greater wing of sphenoid Mandibular nerve Lesser petrosal nerve Accessory meningeal artery Emissary veins (from cavernous sinus to pterygoid plexus)
Where is the foramen spinosum and what does it transmit? (2)
Greater wing of sphenoid
Middle meningeal vessels
Meningeal branch of mandibular nerve
Where is the foramen lacerum and what does it transmit? (5)
between sphenoid, apes of petrous temporal and basilar part of occipital
Internal carotid artery
Greater petrosal nerve
Nerve of pterygoid canal
Meningeal branch of ascending pharyngeal artery
Emissary veins
Where is the cribriform foramina and what does it transmit? (2)
Cribriform plate
Olfactory nerve filaments
Anterior ethmoidal nerve and vessels
Where is the foramen caecum and what does it transmit? (1)
Between frontal crest of the frontal bone and ethmoid in front of Crista Galli
Emissary vein
Where is the internal acoustic meatus and what does it transmit? (3)
Posterior surface of the petrous temporal bone
Facial nerve
Vestibulocochlear nerve
Labyrinthine artery
Where is the jugular foramen and what does it transmit? (7)
Between jugular fossa of petrous temporal and occipital bone Glossopharyngeal Vagus Accessory Meningeal branches of vagus Inferior petrosal sinus Internal jugular vein Meningeal branch of occipital artery
Where is the hypoglossal canal and what does it transmit? (3)
Occipital bone above anterior part of the condyle
Hypoglossal nerve and it’s recurrent meningeal branch
Meningeal branch of ascending pharyngeal artery
Emissary vein
Where is the condylar canal and what does it transmit? (2)
Lower part of the sigmoid groove in lateral part of occipital bone
Emissary vein (from sigmoid sinus to occipital veins)
Meningeal branch of occipital artery
Where is the mastoid foramen and what does it transmit? (2)
petrous temporal near posterior margin of lower part of sigmoid groove, passing backwards to open behind mastoid process Emissary vein (from sigmoid sinus to occipital veins) Meningeal branch of occipital artery
Where is the foramen magnum and what does it transmit? (8)
Occipital bone Apical ligament of odontoid process of axis Tectorial membrane Medulla oblongata and meninges Spinal parts of accessory nerves Meningeal branches of upper cervical nerves Vertebral arteries Anterior spinal artery Posterior spinal arteries
Where is the incisive fossa and what does it transmit? (2)
In midline at front of hard palate
Nasopalatine nerve
Greater palatine vessels
