What Nerve and What Hole?

Question 1

What passes through the foramen cecum?

Answer 1

nasal emissary vein (1% of population)

Question 2

What passes through the cribriform foramina in the cribriform plate?

Answer 2

CN I - olfactory nerve (axons of olfactory cells that form olfactory nerves)

Question 3

What passes through the anterior and posterior ethmoidal foramina?

Answer 3

ethmoidal vessels and nerves

Question 4

What foramina and apertures are located within the anterior cranial fossa?

Answer 4

foramen cecum
cribriform foramina
anterior/posterior ethmoidal foramina

Question 5

What passes through the optic canals?

Answer 5

CN II (optic nerves)
ophthalmic arteries

Question 6

What passes through the superior orbital fissure?

Answer 6

ophthalmic veins
CN V1 (ophthalmic nerve branch of trigeminal nerve)
CN III (oculomotor)
CN IV (trochlear)
CN VI (abducent)
sympathetic fibers

Question 7

What passes through the foramen rotundum?

Answer 7

maxillary nerve (CN V2)

Question 8

What passes through the foramen ovale?

Answer 8

mandibular nerve (CN V3)
accessory meningeal artery

Question 9

What passes through the foramen spinosum?

Answer 9

middle meningeal artery
middle meningeal vein
meningeal branch of CN V3

Question 10

What passes through the foramen lacerum?

Answer 10

deep petrosal nerve

meningeal arterial branches

Question 11

What passes along the groove or hiatus of the greater petrosal nerve?

Answer 11

greater petrosal nerve

petrosal branch of middle meningeal artery

Question 12

What foramina and apertures are located within the middle cranial fossa?

Answer 12

optic canals
superior orbital fissure
foramen rotundum
foramen ovale
foramen spinosum
foramen lacerum
groove/hiatus of greater petrosal nerve

Question 13

What passes through the foramen magnum?

Answer 13

medulla and meninges
vertebral arteries
CN XI (spinal accessory nerve)
dural veins
anterior/posterior spinal arteries

Question 14

What passes through the jugular foramen?

Answer 14

CN IX (glossopharyngeal)
CN X (vagus)
CN XI (spinal accessory)
superior bulb of internal jugular vein
inferior petrosal and sigmoidal sinuses
meningeal branches of ascending pharyngeal and occipital arteries

Question 15

What passes through the hypoglossal canal?

Answer 15

CN XII (hypoglossal)

Question 16

What passes through the condylar canal?

Answer 16

emissary vein (that passes from sigmoid sinus to vertebral veins in the neck)

Question 17

What passes through the mastoid foramen?

Answer 17

mastoid emissary vein (from sigmoid sinus and meningeal branch of occipital artery)

Question 18

Which foramen or aperture does the olfactory nerve pass through?

Answer 18

cribriform foramina in cribriform plate

Question 19

What foramen or aperture does the optic nerve pass through?

Answer 19

optic canal

Question 20

What foramen or aperture does the oculomotor nerve pass through?

Answer 20

superior orbital fissure

Question 21

Which foramen or aperture does the trochlear nerve pass through?

Answer 21

superior orbital fissure

Question 22

Which foramen or aperture does the ophthalmic nerve branch (V1) of the trigeminal nerve pass through?

Answer 22

superior orbital fissure

Question 23

Which foramen or aperture does the maxillary nerve branch (V2) of the trigeminal nerve pass through?

Answer 23

foramen rotundum

Question 24

Which foramen or aperture does the mandibular nerve branch (V3) of the trigeminal nerve pass through?

Answer 24

foramen ovale

Question 25

The meningeal branch of the mandibular branch (V3) of the trigeminal nerve passes through the ____.

Answer 25

foramen spinosum

Question 26

Which foramen or aperture does the abducent nerve pass through?

Answer 26

superior orbital fissure

Question 27

Which foramen or aperture does the facial nerve pass through?

Answer 27

stylomastoid foramen

Question 28

Which foramen or aperture does the vestibulocochlear nerve pass through?

Answer 28

internal auditory meatus

Question 29

Which foramen or aperture does the glossopharyngeal nerve pass through?

Answer 29

jugular foramen

Question 30

Which foramen or aperture does the vagus nerve pass through?

Answer 30

jugular foramen

Question 31

Which foramen or aperture does the spinal accessory nerve pass through?

Answer 31

jugular foramen AND foramen magnum

Question 32

Which foramen or aperture does the hypoglossal nerve pass through?

Answer 32

hypoglossal canal

Question 33

What foramina or aperture are located within the posterior cranial fossa?

Answer 33

``` foramen magnum jugular foramen hypoglossal canal condylar canal mastoid foramen ```