Foramina & 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 (V1)

Question 4

Posterior ethmoidal foramen

Answer 4

Posterior ethmoidal a.v.n (V1)

Question 5

Optic canal

Answer 5

CN II, ophthalmic a

Question 6

Superior orbital fissure

Answer 6

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

Question 7

Foramen rotundum

Answer 7

CN V2

Question 8

Foramen spinosum

Answer 8

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

Question 9

Hiatus for greater petrosal n

Answer 9

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

Question 10

Hiatus for lesser petrosal n

Answer 10

Lesser petrosal n (CN IX)

Question 11

Internal acoustic meatus

Answer 11

CNs VII & VIII, internal labryrinthine a

Question 12

Jugular foramen

Answer 12

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

Question 13

Mastoid foramen

Answer 13

Mastoid emissary v.

Question 14

Condyloid canal

Answer 14

Condyloid emissary v

Question 15

Foramen magnum

Answer 15

Spinal cord, spinal roots of CN XI, vertebral aa., anterior & posterior spinal aa., anterior and posterior meningeal branches (vertebral a), dural vv

Question 16

Hypoglossal canal

Answer 16

CN XII (GSE), posterior meningeal branch of ascending pharyngeal a

Question 17

Petrotympanic fissure

Answer 17

Chorda tympani of CN VII

Question 18

Stylomastoid foramen

Answer 18

SVE of CN VII

Question 19

Carotid canal

Answer 19

Internal carotid a., sympathetic plexus

Question 20

Tympanic canaliculus

Answer 20

Tympanic branch of CN IX

Question 21

Mastoid canaliculus

Answer 21

Auricular branch of CN X

Question 22

Foramen lacerum

Answer 22

Meningeal branch of ascending pharyngeal a.

Question 23

Sphenomaxillary fissure

Answer 23

3rd portion maxillary a.; posterior superior alveolar n.

Question 24

Pterygopalatine fossa

Answer 24

3rd portion maxillary a. & pterygopalatine ganglion

Question 25

Sphenopalatine foramen

Answer 25

Sphenopalatine a., nasopalatine n., opsterior superior lateral nasal n.

Question 26

Pterygoid canal

Answer 26

N. & a. of the pterygoid canal

Question 27

Pharyngeal canal

Answer 27

Pharyngeal a. & n.

Question 28

Greater palatine canal

Answer 28

Greater palatine a. & n.

Question 29

Lesser palatine canal

Answer 29

lesser palatine a. & n.

Question 30

Supraorbital notch

Answer 30

Supraorbital a.v.n.

Question 31

Infraorbital foramen

Answer 31

Infraorbital a.v.n.

Question 32

Nasolacrimal canal

Answer 32

Nasolacrimal duct

Question 33

Inferior orbital fissure

Answer 33

Infraorbital a. & n., orbital & zygomatic nn, inferior ophthalmic v.

Question 34

Zygomaticofacial foramen

Answer 34

Zygomaticofacial a.v.n.

Question 35

Zygomaticotemporal foramen

Answer 35

Zygomaticotemproral a.v.n.

Question 36

Incisive canal

Answer 36

Nasopalatine n., greater palatine a.

Question 37

Mandibular foramen

Answer 37

Inferior alveolar a.v.n.

Question 38

Mental foramen

Answer 38

Mental a.v.n.

Question 39

Foramen ovale

Answer 39

CN V3, accessory meningeal a.