Skull Foramina

Question 1

Cribriform Plate

Answer 1

Bone: ethomoid
Transmits: CN I

Question 2

Froamen Cecum

Answer 2

Bone: frontal

Nasal emissary vein

Question 3

Anterior Ethmoidal foramen

Answer 3

Frontoethmoidal suture

Anterior ethmoidal a,v,n

Question 4

Posterior Ethmoidal foramen

Answer 4

Frontoethmoidal suture

Posterior ethmoidal a,v,n

Question 5

Optic canal

Answer 5

Sphenoid (chiasmatic groove)
CN II
Opthalamic artery

Question 6

Superior orbital fissure

Answer 6

Sphenoid
CN III
CN IV
CN V1
VN VI
Superior opthalamic vein

Question 7

Foramen rotundum

Answer 7

Sphenoid

CN V2

Question 8

Foramen Ovale

Answer 8

Sphenoid
CN V3
Accessory meningeal artery

Question 9

Foramen Spinosum

Answer 9

Sphenoid
Middle meningeal artery
recurrent meningeal nerve V3

Question 10

Hiatus for Greater Petrosal nerve

Answer 10

Temporal (petrous)
Greater petrosal nerve CN VII
Petrosal branch of middle meningeal artery

Question 11

Hiatus for Lesser Petrosal Nerve

Answer 11

Temporal (petrous, lateral to hiatus for greater petrosal nerve)
Lesser petrosal nerve CN IX

Question 12

Internal Acoustic Meatus

Answer 12

Temporal (petrous)
CN VII
CN VIII
Internal labryinthine artery

Question 13

Jugular Foramen

Answer 13

Petrooccipital fissure
CN IX
CN X
CN XI
Sigmoid sinus 
Inferior petrosal sinus
Internal jugular vein
Posterior Meningeal branch of occipital and ascending pharyngeal arteries

Question 14

Mastoid Foramen

Answer 14

Temporal (mastoid)

Mastoid emissary vein

Question 15

Condyloid Canal

Answer 15

Occipital (lateral to foramen magnum)

Condyloid emissary vein

Question 16

Foramen Magnum

Answer 16

Occipital
Spinal cord
spinal roots of CN XI
Vertebral arteries
Anterior and posterior spinal arteries
Anterior and posterior meningeal branches (vert a)
Dural vv

Question 17

Hypoglossal Canal

Answer 17

Occipital
CN XII (GSE)
Posterior meningeal branch of ascending pharyngeal artery

Question 18

Petrotympanic fissure

Answer 18

Temporal (medial to mandibular fossa)

Chorda tympani of CN VII

Question 19

Stylomastoid foramen

Answer 19

Temporal (Mastoid posterior to styloid process)

SVE of CN VII

Question 20

Carotid Canal

Answer 20

Temporal
Internal carotid artery
Sympathetic plexus

Question 21

Tympanic Canaliculus

Answer 21

Temporal (crest between jugular foramen and carotid canal)

Tympanic branch of CN IX

Question 22

Mastoid Canaliculus

Answer 22

Temporal (inside jugular foramen laterally)

Auricular branch of CN X

Question 23

Foramen lacerum

Answer 23

Sphenoid, temporal, occipital

Meningeal branch of ascending pharyngeal artery

Question 24

Sphenomaxillary fissure

Answer 24

Anterior infratemporal fossa
3rd portion of maxillary artery
Posterior superior alveolar nerve

Question 25

Pterygopalatine Fossa

Answer 25

Inside sphenomayxillary fissure 3rd portion of maxillary artery Pterygopalatine ganglion

Question 26

Sphenopalatine foramen

Answer 26

Deep to pterygopalatine fossa (medial wall) sphenopalatine artery nasopalatine nerve posterior superior lateral nasal nerve

Question 27

Pterygoid Canal

Answer 27

Sphenoid (anterior wall of foramen lacerum) | N and A of pterygoid canal

Question 28

Pharyngeal Canal

Answer 28

Sphenovomer suture | Pharyngeal artery and nerve

Question 29

Greater Palatine canal

Answer 29

Palatine bone | Greater palatine artery and nerve

Question 30

Lesser palatine canal

Answer 30

Palatine bone | Lesser palatine artery and nerve

Question 31

Supraorbital notch

Answer 31

Frontal | Supraorbital artery, vein, nerve

Question 32

Infraorbital foramen

Answer 32

Maxilla | Infraorbital artery, vein, nerve

Question 33

Anterior ethmoidal foramen

Answer 33

Frontal ethmoidal suture | Anterior ethmoidal artery, vein, nerve

Question 34

Posterior ethmoidal foramen

Answer 34

Frontal ethmoidal suture | Posterior ethmoidal artery, vein, nerve

Question 35

Nasolacrimal canal

Answer 35

Maxilla | Nasolacrimal duct

Question 36

Superior orbital fissure

Answer 36

``` Sphenoid CN III CN IV CN V1 CN VI Superior ophthalmic vein ```

Question 37

Inferior orbital fissure

Answer 37

Upper extent of sphenoid maxillary fissure Infraorbital artery and nerve Orbital and zygomatic nerves Inferior ophthalmic vein

Question 38

Zygomaticofacial foramen

Answer 38

Zygomatic | Zygomaticofacial artery, vein, nerve

Question 39

Zygomaticotemporal foramen

Answer 39

zygomatic | Zygomaticofacial artery, vein, nerve

Question 40

Incisive canal

Answer 40

Maxilla Nasopalatine nerve Greater palatine artery

Question 41

Mandibular foramen

Answer 41

Mandible | inferior alveolar artery, vein, nerve

Question 42

Mental foramen

Answer 42

Mandible | Mental artery, vein, nerve