MRCEM Notes

Head Injury

Diagram illustrating internal acoustic canal (meatus)

Location (where cranial nerve exits skull)Cranial nerve
cribriform plateOlfactory nerve (I)
optic foramenOptic nerve (II)
superior orbital fissureOculomotor (III)
Trochlear (IV)
Abducens (VI)
Trigeminal V1
(ophthalmic)
Foramen rotundumTrigeminal V2
(maxillary)
Foramen ovaleTrigeminal V3
(mandibular)
Stylomastoid foramen (via internal auditory canal)Facial nerve (VII)
Internal auditory canalVestibulocochlear (VIII)
Jugular foramenGlossopharyngeal (IX)
Vagus (X)
Accessory (XI)
Hypoglossal canalHypoglossal (XII)

Image illustrating cranial nerve anatomy:

Wikipedia
Full-size image