Skull Base, Exiting Foramina of Cranial Nerves Flashcards
Paper thin plates that form the medial wall of its orbital cavity
Lamina papyracea
Most internal hidden bone of the cranium
Ethmoid bone
Borders of the cranial fossa
Anterior
Middle - landmark is the sella
-tuberculum sella is always midline
Hardest bone in the body
Petrous bone
Where do the cranial nerves come out?
Base
It’s all about the base (bass) -Seng, 2014
Facial nerve comes out in what foramen…
Stylomastoid foramen
There are three divisions of cranial nerve number 5
True
Transmits cranial nerve 7 and 8
Internal acoustic meatus
Path of carotid artery
Foramen lacerum -> cavernous sinus
What CNs pass through the superior orbital fissure?
V1
CN3
CN4
CN6
Trigeminal nerves
V1 S superior orbital fissure
V2 R foramen rotundum
V3 O foramen ovale (round, bigger)
Transmits IJV, CN IX, X, XI
Jugular foramen
CN XII?
Occipital condyle
Middle meningeal artery?
Foramen spinosum