Cranial Fossa

Question 1

WHat goes through the Foramina of the Cribiform plate?

Answer 1

CN I - Olfactory

Question 2

Optic Canal?

Answer 2

CNII - Optic

Opthalmic Artery

Question 3

Superior Orbital Fissure

Answer 3

1- CN III - Occulomotor
2- CN IV- Troclear
3- V1 branch of Trigeminal (Opthalmic)
4- CN VI - Abducent 
5- Opthalmic Veins

Question 4

Foramen Rotundum

Answer 4

V2 branch of Trigeminal ( Maxillary)

Question 5

Foramen Ovale

Answer 5

1- V3 branch of Trigeminal (Mandibular)
2- Accessory Meningeal Artery
3- Lesser Petrosal Nerve (Branch of the Glossopharyngeal)

Question 6

Carotid Canal

Answer 6

Internal Carotid Artery

Internal carotid nerve plexus

Question 7

Foramen Spinosum

Answer 7

Middle meningeal vessels

middle meningeal nerve

Question 8

Groove of Facial Canal (aka hiatus for….)

Answer 8

Greater Petrosal nerve (branch of the facial nerve -CN VII)

Question 9

Groove of the Lesser Petrosal Nerve

Answer 9

Lesser Petrosal nerve (CN IX)

Question 10

Internal Auditory Meatus

Answer 10

Internal auditory vessels
CN VII- Facial
CN VIII- Vestibulocochlear

Question 11

Jugular Foramen

Answer 11

Internal Jugular Vein

CN IX, X, XI - Glossopharyngeal, Vagus, and Accessory

Question 12

Hypoglossal Canal

Answer 12

Hypoglossal N (CN XII) 
Emissary Vein

Question 13

Foramen Magnum

Answer 13

Vertebral arteries
CN XI (Accessory) Nerve Roots
Brainstem, spinal cord
Ant/Post Spinal arteries

Question 14

Condyloid canal

Answer 14

Emissary Vein