foramina of skull & contents

Question 1

cribiform foramina

Answer 1

Axons of olfactory cells that form olfactory nerves

Question 2

anterior and posterior ethmoid foramina

Answer 2

vessels and nerves with the same names (ex: anterior ethmoid artery, posterior ethmoid nerve)

Question 3

optic canals

Answer 3

optic nerves (CN II)

Question 4

superior orbital fissure

Answer 4

opthalmic nerve (CN V1 – part of trigeminal nerve), CN III, IV, VI

Question 5

foramen rotundum

Answer 5

maxillary nerve (CN V2) – part of trigeminal nerve

Question 6

foramen ovale

Answer 6

mandibular nerve CN V3 – part of trigeminal nerve

Question 7

foramen spinosum

Answer 7

middle meningeal artery & vein & meningeal branch of CN V3 (part of trigeminal nerve)

Question 8

foramen lacerum

Answer 8

internal carotid artery

Question 9

foramen magnum

Answer 9

medulla, meninges, vertebra arteries, CN XI (accessory nerve)

Question 10

jugular foramen

Answer 10

CN IX, X & XI

Question 11

hypoglossal canal

Answer 11

hypoglossal nerve (CN XII)