Skull Foramina Flashcards
Cribriform Plate
Bone: ethomoid
Transmits: CN I
Froamen Cecum
Bone: frontal
Nasal emissary vein
Anterior Ethmoidal foramen
Frontoethmoidal suture
Anterior ethmoidal a,v,n
Posterior Ethmoidal foramen
Frontoethmoidal suture
Posterior ethmoidal a,v,n
Optic canal
Sphenoid (chiasmatic groove)
CN II
Opthalamic artery
Superior orbital fissure
Sphenoid CN III CN IV CN V1 VN VI Superior opthalamic vein
Foramen rotundum
Sphenoid
CN V2
Foramen Ovale
Sphenoid
CN V3
Accessory meningeal artery
Foramen Spinosum
Sphenoid
Middle meningeal artery
recurrent meningeal nerve V3
Hiatus for Greater Petrosal nerve
Temporal (petrous)
Greater petrosal nerve CN VII
Petrosal branch of middle meningeal artery
Hiatus for Lesser Petrosal Nerve
Temporal (petrous, lateral to hiatus for greater petrosal nerve)
Lesser petrosal nerve CN IX
Internal Acoustic Meatus
Temporal (petrous)
CN VII
CN VIII
Internal labryinthine artery
Jugular Foramen
Petrooccipital fissure CN IX CN X CN XI Sigmoid sinus Inferior petrosal sinus Internal jugular vein Posterior Meningeal branch of occipital and ascending pharyngeal arteries
Mastoid Foramen
Temporal (mastoid)
Mastoid emissary vein
Condyloid Canal
Occipital (lateral to foramen magnum)
Condyloid emissary vein
Foramen Magnum
Occipital Spinal cord spinal roots of CN XI Vertebral arteries Anterior and posterior spinal arteries Anterior and posterior meningeal branches (vert a) Dural vv