Skull Foramina and what they transmit Flashcards
Cribriform Plate
Ethmoid bone
transmits CNI
Anterior Ethmoidal Foramen
Anterior ethmoidal VAN
Posterior Ethmoidal Foramen
Posterior ethmoidal VAN
Optic Canal
Sphenoid bone
transmits CNII and Ophthalmic artery
Superior Orbital Fissure
CNIII CNIV CNV, CNV1 CNVI and superior ophthalmic vein
Foramen Rotundum
CNV2
Foramen Ovale
CNV3, accessory meningeal artery
Foramen Spinosum
Middle meningeal artery, recurrent meningeal nerve of CNV3
Foramen Lacerum
Spehnoid, temporal, occipital bones
transmitting meningeal branch of ascending pharyngeal artery
Hiatus for greater petrosal nerve
Temporal bone
transmits greater petrosal nerve of CNVII, petrosal branch of middle meningeal artery
Hiatus for lesser petrosal nerve
temporal bone, transmits lesser petrosal nerve of CNIX
Internal acoustic meatus
CNVII, CNVIII, internal labyrinthine artery
Jugular Foramen
Petrooccipital fissure
Transmits CNIX CNX CNXI, sigmoid sinus, inferior petrosal sinus, posterior meningeal branches of occipital and ascending pharyngeal arteries
Foramen Magnum
Occipital bone
spinal cord, spinal roots of CNXI and vertebral arteries
Hypoglossal canal
Occipital bone
Anterior/posterior spinal arteries, dural veins, CNXII, posterior meningeal branch of ascending pharyngeal artery