Foramina and What They Transmit

Question 1

Cribriform plate

Answer 1

CN I

Question 2

Foramen cecum

Answer 2

Nasal emissary vein

Question 3

Anterior ethmoidal foramen

Answer 3

anterior ethmoidal a.v.n.

Question 4

Posterior ethmoidal foramen

Answer 4

posterior ethmoidal a.v.n.

Question 5

Optic canal

Answer 5

CNII, opthalmic a.

Question 6

Suuperior orbital fissure

Answer 6

CNs III, IV, V1, VI, superior ophthalmic v.

Question 7

Foramen rotundum

Answer 7

CN V2

Question 8

Foramen ovale

Answer 8

CN V3, accessory meningeal a.

Question 9

Foramen spinosum

Answer 9

Middle meningeal a., recurrent meningal n. (V3)

Question 10

Hiatus for greater petrosal n.

Answer 10

Greater petrosal n. (CN VII), petrosal br. of middle meningeal a.

Question 11

Hiatus for lesser petrosal n.

Answer 11

Lesser petrosal n. (CN IX)

Question 12

Internal acoustic meatus

Answer 12

CNs VII & VIII, internal labyrinthine a.

Question 13

Jugular foramen

Answer 13

CNs IX, X & XI, sigmoid sinus, inf. petrosal sinus, internal jugular v., posterior meningeal brs. of occipital & ascending pharyngeal aa.

Question 14

Mastoid foramen

Answer 14

Mastoid emissary v.

Question 15

Condyloid canal

Answer 15

Condyloid emissary v.

Question 16

Foramen magnum

Answer 16

Spinal cord, spinal roots of CNXI, vertebral aa., ant. & post. spinal aa., ant. & post. meningeal branches (vert. a.); dural vv.

Question 17

Hypoglossal canal

Answer 17

CN XII (GSE), post. meningeal branch of ascending pharyngeal artery

Question 18

Petrotympanic fissure

Answer 18

Chorda tympani of CN VII

Question 19

Stylomastoid foramen

Answer 19

SVE of CN VII

Question 20

Carotid canal

Answer 20

Internal carotid a., sympathetic plexus

Question 21

Tympanic canaliculus

Answer 21

Tympanic br. of CN IX

Question 22

Mastoid canaliculus

Answer 22

Auricular br. of CN X

Question 23

Foramen lacerum

Answer 23

Meningeal br. of ascending pharyngeal a.

Question 24

Sphenomaxillary fissure

Answer 24

3rd portion maxillary a.; post. sup. alveolar n.

Question 25

Pterygopalatine fossa

Answer 25

3rd portion maxillary a. & pterygopalatine ganglion

Question 26

Sphenopalatine foramen

Answer 26

Sphenopalatine a., nasopalatine n., post sup lat nasal n.

Question 27

Pterygoid canal

Answer 27

Sphenoid (ant. wall of foramen lacerum)

N.and; A. of the pterygoid canal

Question 28

Pharyngeal canal

Answer 28

Sphenovomer suture

Pharyngeal a. & n.

Question 29

Greater palatine canal

Answer 29

Palatine bone

Greater palatine a. & n.

Question 30

Lesser palatine canal

Answer 30

Palatine bone

Lesser palatine a. & n.

Question 31

Supraorbital notch

Answer 31

Frontal bone

Supraorbital a.v.n.

Question 32

Infraorbital foramen

Answer 32

Maxilla bone

infraorbital a.v.n.

Question 33

Anterior ethmoidal foramen

Answer 33

frontal ethmoidal suture

ant. ethmoidal a.v.n.

Question 34

Posterior ethmoidal foramen

Answer 34

frontal ethmoidal suture

post. ethmoidal a.v.n.

Question 35

Nasolacrimal canal

Answer 35

Maxilla

nasolacrimal duct

Question 36

Superior orbital fissure

Answer 36

sphenoid

CNs III, IV, V1, VI, sup. ophthal. v.

Question 37

Inferior orbital fissure

Answer 37

upper extent of spheno. max. fis.

infraorbital a. & n., orbital & zygomatic nerves, inferior ophthalmic v.

Question 38

Zygomaticofacial foramen

Answer 38

Zygomatic bone

zygomaticofacial a.v.n.

Question 39

Zygomaticotemporal foramen

Answer 39

Zygomatic bone

zygomaticotemporal a.v.n.

Question 40

Incisive canal

Answer 40

Maxilla

Nasopalatine n., greater palatine a.

Question 41

Mandibular foramen

Answer 41

Mandible

inferior alveolar a.v.n.

Question 42

Mental foramen

Answer 42

Mandible

inferior alveolar a.v.n.
mental a.v.n.