Skull: Foramen and Contents

Question 1

foramen cecum

Answer 1

nasal emissary vein

Question 2

cribriform plate

Answer 2

CN I - olfactory nerve

ethmoid bone

Question 3

anterior ethmoidal foramen

Answer 3

anterior ethmoidal artery, vein, nerve

seen near cribriform and inside nose

Question 4

posterior ethmoidal foramen

Answer 4

posterior ethmoidal artery, vein nerve

seen near cribriform and inside nose

Question 5

optic canal

Answer 5

CN II

opthalamic artery

Question 6

superior orbital fissure

Answer 6

CN III, IV, V -1, VI
3, 4, 5-1, 6
superior opthalmic vein

Question 7

foramen rotundum

Answer 7

CN V2

close to the superior orbital fissure
and exits into nasal cavity

Question 8

foramen ovale

Answer 8

CN V3

accessory meningeal artery

Question 9

foramen spinosum

Answer 9

middle meningeal artery
recurrent meningeal nerve (V3)

seen from inferior and superior

Question 10

hiatus for greater petrosal nerve

Answer 10

greater petrosal nerve
-branch of CN VII

-petrosal branch of middle meningeal artery

Question 11

hiatus for lesser petrosal nerve

Answer 11

lesser petrosal nerve

-branch of the CN IX

Question 12

internal acoustic meatus

Answer 12

CN VII, VIII
7,8

internal labryninthine artery

Question 13

jugular foramen

Answer 13

CN IX, X, XI
9, 10, 11

sigmoid sinus
inferior petrosal sinus

internal jugular vein

posterior meningeal branches of occipital artery
ascending pharyngeal artery

3 2 2 1
nerve sinus artery vein
“sip sinuses”
“pmoap arteries”

Question 14

mastoid foramen

Answer 14

mastoid emissary vein

Question 15

condyloid canal

Answer 15

condyloid emissary vein

seen posterior to occipital condyle and inside skull

Question 16

foramen magnum

Answer 16

spinal cord
spinal roots of CN XI
vertebral arteries
anterior and posterior spinal arteries
dural veins

Question 17

hypoglossal canal

Answer 17

CN XII (GSE)

posterior meningeal branch of ascending pharyngeal artery

runs through occipital condyle

Question 18

petrotympanic fissure

Answer 18

chorda tympani
-of CN VII

medial to mandibular fossa

Question 19

stylomastoid foramen

Answer 19

CN VII - SVE

between mastoid and styloid processes

Question 20

carotid canal

Answer 20

internal carotid artery
sympathetic plexus

seen ??

Question 21

foramen lacerum

Answer 21

meningeal branch of ascending pharyngeal

seen ??

Question 22

tympanic canaliculus

Answer 22

tympanic branch of CN IX

Question 23

mastoid canaliculus

Answer 23

auricular branch of CN X

Question 24

sphenomaxillary fissure

Answer 24

3rd portion of maxillary artery

Question 25

Pterygopalatine fossa

Answer 25

3rd portion maxillary artery | Pterygopalatine ganglion

Question 26

Sphenopalatine foramen

Answer 26

Sphenopalatine artery Nasopalatine nerve Posterior superior lateral nasal nerve

Question 27

Pterygoid canal

Answer 27

Nerve and artery of pterygoid canal

Question 28

Pharyngeal canal

Answer 28

Pharyngeal artery and nerve

Question 29

Greater palatine canal

Answer 29

Greater palatine artery and Nerve

Question 30

Lesser palatine canal

Answer 30

Lesser palatine artery and nerve

Question 31

Supraorbital notch

Answer 31

Supra orbital artery, vein, nerve

Question 32

Infraorbital foramen

Answer 32

Infraorbital artery vein nerve

Question 33

Anterior ethmoidal foramen

Answer 33

Anterior ethmoidal artery vein nerve

Question 34

Posterior ethmoidal foramen

Answer 34

Posterior ethmoidal artery vein nerve

Question 35

Nasolacrimal canal

Answer 35

Nasolacrimal duct

Question 36

Superior orbital fissure

Answer 36

CN III, IV, V1, VI | Superior ophthalmic vein

Question 37

Inferior orbital fissure

Answer 37

Infraorbital artery and nerve Orbital nerve Zygomatic nerve Inferior ophthalmic vein

Question 38

Zygomaticofacial foramen

Answer 38

Zygomaticofacial artery vein nerve

Question 39

Zygomaticotemporal foramen

Answer 39

Zygomaticotemporal artery, vein, nerve

Question 40

Incisive canal

Answer 40

Nasopalatine nerve | Greater palatine artery

Question 41

Mandibular foramen

Answer 41

Inferior alveolar artery vein nerve

Question 42

Mental foramen

Answer 42

Mental artery vein nerve