Foramina of Skull

Question 1

Cribiform plate transmits ___

Answer 1

CN 1

Question 2

Foramen Cecum transmits __

Answer 2

emissary veins from nasal cavity to superior sagittal sinus

Question 3

Anterior ethmoidal foramen transmits ___

Answer 3

anterior ethmoidal n., a., v.

Question 4

Posterior ethmoidal foramen transmits ___

Answer 4

posterior ethmoidal n., a., v.

Question 5

Sphenopalatine foramen transmits ___

Answer 5

sphenopalatine artery and vein
(posterior lateral nasal branches & posterior septal branches)

nasopalatine nerve (CN V2)

posterior lateral nasal nerves (CN V2)

Question 6

Optic canal transmits ___

Answer 6

CN II (optic nerve)

opthalmic artery

sympathetic fibers from internal carotid prexus

Question 7

Superior orbital fissure transmits ___

Answer 7

CN 3, 4, V1, 6

Superior opthaljic vein

Lacrimal Artery

Sympathetic fibers from internal carotid plexus

Question 8

Inferior orbital fissure transmits ___

Answer 8

Infraorbiatl nerve (CN V2)
Zygomatic nerve (CN V2)
(branches: zygomaticofacial n, zygomaticotemporal n)

Infraorbital a/v
zygomaticofacial a/v
zygomaticotemporal a/v

Question 9

Supraorbital foramen / notch transmits ___

Answer 9

supraorbital n/a/v

Question 10

Infraorbital foramen transmits ___

Answer 10

infraobrital n/a/v

Question 11

Zygomaticotemporal foramen transmits ___

Answer 11

zygomaticotemporal nerve (CN V2) emerges from here onto temple

Question 12

Zygomaticofacial foramen Transits ___

Answer 12

zygonaticofacial nerve (CN V2) emerges here onto face

Question 13

Alveolar canal transmits ___

Answer 13

posterior superior alveolar nerve (CN V2)

posterior superior alveolar artery/vein

Question 14

Foramen Rotundum transmits __

Answer 14

CN V2

Question 15

Foramen Ovale transmits __-

Answer 15

CN V3

Accessory meningeal artery

Question 16

Internal acoustic (auditory) meatus transmits ___

Answer 16

CN 7, 8

Labrynthine (internal auditory) artery

Question 17

External acoustic (auditory) meatus transmits __

Answer 17

typmanic membrane (blocks entrance to middle ear)

Question 18

Groove for pharyngotympanic (auditory) tube transmits __

Answer 18

cartilaginous portion of auditory tube

Question 19

Stylomastoid foramen transmits __

Answer 19

CN 7

Question 20

Petrotympanic fissure transmits __

Answer 20

chorda tympani nerve (CN 7)

anterior tympanic artery/vein

Question 21

Hiatus for greater petrosal nerve transmits __

Answer 21

greater petrosal nerve (from CN 7)

Question 22

Hiatus for lesser petrosal nerve transmits __

Answer 22

lesser petrosal nerve (CN 9)

Question 23

Jugular foramen transmits ___

Answer 23

CN 9, 10, 11

Internal jugular vein

Question 24

Hypoglossal canal transmits __

Answer 24

CN 12

Question 25

Carotid canal transmits __

Answer 25

Internal carotid artery

Sympathetic (carotid) plexus of nerves from internal carotid nerve

Question 26

Foramen lacerum transmits __

Answer 26

largely filled with fibrocartilage plug

Internal carotid artery runs above it to enter crania lvault

Question 27

Pterygomaxillary fissure transmits __

Answer 27

Terminal branches of maxillary artery/veins

Question 28

Pterygopalatine Fossa transmits __

Answer 28

Pterygopalatine ganglion

CN V2 branches

Branches of maxillary artery/veins

Question 29

Pterygoid canal transmits __

Answer 29

Vidian nerve (nerve of pterygoid canal)

Pterygoid a./v. of maxillary

Question 30

Pharynegal canal transmits __

Answer 30

Pharyngeal nerve

Pharyngeal branches of maxillary a/v

Question 31

Palatine canal transmits __

Answer 31

greater palatine nerve
lesser palatine nerve

descending palating artery/vein
-> greater/lesser a/v

Question 32

greater palatine foramen transmits __

Answer 32

greater palatine nerve

greater palatine a/v

Question 33

lesser palatine foramen transmits transmits __

Answer 33

lesser palatine nerve

lesser palatine a/v

Question 34

Incisive foramen transmits __

Answer 34

nasopalatine nerve

branches of sphenopalatine artery/vein

branches of greater palatin artery/vein (anastomose with sphenopalatine artery/vein)

Question 35

Foramen spinosum transmits __

Answer 35

middle meningeal arteyr

meningeal branch of CN V3

Question 36

Foramen magnum transmits __

Answer 36

Spinal cord/meninges

Ascending rootlets of CN 11

Vertebral arteries

Anterior/posterior spinal arteries

Question 37

Condyloid canal transmits __

Answer 37

emissary veins from superficial veins of skull to sigmoid sinus

Question 38

Mandibular foramen transmits __

Answer 38

inferior alveolar n/v/a

Question 39

Mental foramen transmits __

Answer 39

mental nerve