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Basal Skull Foramen
Basal Foramen | Location | Transmits |
---|---|---|
Olfactory foramen | Anterior crainal fossa | CN I - Olfactory |
Optic foramen | Middle Crainial fossa, inferior aspect of lesser wings of sphenoid | CN II - Optic |
Superior Orital fussure | B/w greater and lesser wing of sphenoid | CN III, IV, V1, VI - Occularmotor, Trochlear, Trigeninal Opthalmic, Abdeuces |
Foramen Rotundum | Middle Crainial Fossa, greater wing of sphenoid | CN V2 - Trigeminal Maxillary |
Foramen Ovale | Middle Crainial fossa, postero-lateral to foramen rotundum | CN V3 - Trigeminal Mandibular |
Foramen Spinosum | Middle Crainial fossa, postero-lateral to foramen ovale | Middle meninggeal artery |
Foramen Lacerum | Middle crainial fossa, lateral to dorsum sallae | Carotid artery |
Carotid Foramen | Middle crainial fossa, petrous bone | Leads to foramen lacerum, carotid artery |
Foramen Magnum | Posterior crainial fossa | spinal cord and vertebral arteries |
Jugular Foramen | Posterior crainial fossa, b/w petrous ridges and occipital bone, antero-lateral to foramen magnum | Jugular vein, CN IX, X, XI - Glossopharengeal, vagus, accessory |
Internal Auditory Foramen | Posterior crainial fossa, postero-lateral aspect of petrous ridegs | CN VII, VIII - Facial, Vestibulochochlear |
Hypoglossal Foramen | Posterior crainial fossa, lateral aspect of foramen magnum | CN XII - hypoglossal |