1
Cribriform Plate
Olfactory ( CN I )
2
Optic Foramen
Optic ( CN II), also retinal artery and vein
3
Superior Orbital Fissure
Oculomotor ( CN III )
Trochlear ( CN IV )
Ophthalmic division of Trigeminal ( CN V1)
Abducens ( CN VI )
4
Foramen Rotundum
Maxillary division of Trigeminal (CN V2)
5
Foramen Ovale
Mandibular division of Trigeminal ( CN V3)
6
Carotid canal
internal carotid artery
7
Internal Auditory Meatus
Facial ( CN VII)
Vestibulocochlear (CN VIII)
8
Jugular Foreamen
Glossopharyngeal ( CN IX )
Vagus ( CN X)
Spinal Accessory ( CN XI)
also internal jugular vein
9
Hypoglossal Foramen
Hypoglossal ( CN XII)
10
Foramen Magnum
Spinal cord
vertebral artery and vein
11
Inferior Orbital Fissure
Maxillary division of Trigeminal (CN V2)
12
Mandibular Foramen
Mandibular division of Trigeminal (CN V3)